The Discovery of Penicillin For the longest time, people have been afraid of infection. People tried to use herbal treatments to cure infection, but this was ineffective. Then, Louis Pasteur discovered that germs would not grow on a certain bread mold. Pasteur's discovery led to the study of antibiotics.
For many years, scientists tried to find out why germs would not grow on molds. This process was perfected when Sir Alexander Fleming made a breakthrough in 1928. His discovery was completely by accident. Fleming was known for being untidy. He had left a dish of bacteria out on a table overnight, and it became contaminated with a fungus. Fleming found that this fungus produced a substance he called penicillin. He then just needed to find a way to get the drug to the public.
Fleming worked hard for years to make his drug available to large numbers of people. The earliest form of the drug was a powder. The idea was to sprinkle the powder on the wound to treat infection. This did not work often because the drug did not get deep enough into a wound, and the patient would become infected.
About fifteen years later, two American companies discovered methods to make the drug on a large scale. They began selling penicillin to the public. Soon, everyone was recovering from bacterial infections, especially the type in wounds. This was good news, too. Nations around the globe had just become involved in World War II.

Which of the following can the reader infer from this article?
A.
Research takes time and much effort from many people.
B.
Millions of people every year come down with infection.
C.
After World War II, research on penicillin came to an end.
D.
There can be only one way to treat a bacterial infection.

Asap plz which sentence from this excerpt of jefferson davis’s inaugural address indicates that secession was the confederacy’s way of reclaiming its legal powers? an agricultural people, whose chief interest is the export of a commodity required in every manufacturing country, our true policy is peace, and the freest trade which our necessities will permit . . there can be but little rivalry between ours and any manufacturing or navigating community, such as the northeastern states of the american union. it must follow, therefore, that a mutual interest would invite good will and kind offices. if, however, passion or the lust of dominion should cloud the judgment or inflame the ambition of those states, we must prepare to meet the emergency and to maintain, by the final arbitrament of the sword, the position which we have assumed among the nations of the earth. we have entered upon the career of independence, and it must be inflexibly pursued. through many years of controversy with our late associates, the northern states, we have vainly endeavored to secure tranquillity, and to obtain respect for the rights to which we were entitled. as a necessity, not a choice, we have resorted to the remedy of separation; and henceforth our energies must be directed to the conduct of our own affairs, and the perpetuity of the confederacy which we have formed. if a just perception of mutual interest shall permit us peaceably to pursue our separate political career, my most earnest desire will have been fulfilled. but, if this be denied to us, and the integrity of our territory and jurisdiction be assailed, it will but remain for us, with firm resolve, to appeal to arms and invoke the blessings of providence on a just cause . .