Which sentence does not contain any errors in comma usage?
a. the original london bridge was moved to lake havasu city arizona.
b. if you ever visit new haven, connecticut, be sure to eat at sally's pizza.
c. as of september 15 2004, my new address will be 4 electric avenue, somerville ma 02144.
d. my great-grandmother's birthdate was may 6 1923.

Question 15 of 25 2 points read the following excerpt from a speech: it has been suggested that all automobiles be converted to electric power by the year 2020. _ there simply isn't the infrastructure in place to accommodate such a change. which word or phrase best connects the ideas in these sentences? o a. nowadays o b. therefore o c. in contrast o d. unfortunately