19) The milk given to cats is different than the milk given to human children in a number of ways. Look at the underlined section marked (19). Choose the answer that best corrects this sentence, if appropriate. A) Correct as is.
B) The milk given to cats being different than the milk given to human children in a number of ways.
C) Because the milk given to cats is different than the milk given to human children in a number of ways
D) Although the milk given to cats is different than the milk given to human children in a number of ways.

i guess the cause and effect would show how being around the smoke(the cause) can have negative effects on the body.

explanation:

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.

b. cronkite, a trusted television personality, declared that the war was unwinnable and told the american people that the government had better find a way out

even though it went against everything the news anchors typically stood for, cronkite voiced an opinion and took a stance, telling the us that there was no way they were going to win, the war was going to end in a stalemate. 

due to knowing to much and more becoming knowledgeable most of the people are using their talents that's why they don't need to believe on the hoaxes because they got their humanism in them then the past ones.the main reason why people believe in hoaxes today than ever is due to the potential reach of the internet on the global platform. the artists are using the mindset of the audience to create something that is not even real. and people are even following it up due to the trending pattern.