Answer:
plenty is the correct one
plenty
Explanation:
This has to deal with Subject-Verb Agreement. In this case, your subject "vaccines" is plural, so you want your verb to be plural as well, following the preposition of "of".
I am joyous to assist you anytime.
Getting clean air to breathe and clean water is a necessity to human beings, whereas having personal freedom is not.
Answer: D. One finds comfort in the familiar, even if the familiar is painful.
cluck
shouted, "Great that would be the best one