Read the passage.

(1) Ask young people today if they know of anyone
who has had smallpox, and they might ask, "What's
smallpox?" (2) That is because this disease was
eradicated from the planet decades ago, thanks to
vaccinations. (3) Despite the obvious effectiveness of
vaccination, opponents of this procedure argue that
without adding anything potentially harmful to their
bodies. (4) Still, the American Academy of Pediatrics
says that vaccines can be 99 percent effective, and
the Centers for Disease Control claims that, over a 10-
year period, vaccines allowed 322 million children to
avoid illnesses. (5) So the next time someone tells you
that vaccines are poisoned apples that will lead to a
fate like Snow White's, counter their argument with the
facts. (6) The bottom line is that vaccines are safe to
use and save lives.

How can the writer add parallelism in this passage?

A. by changing the phrase "young people” to “most
people” in sentence 1

B. O by deleting the words obvious and potentially from
sentence 3

C. by deleting “save lives" and adding the phrase
"easy to administer" to the end of sentence 4

D. by shortening the passage to only five sentences
by removing sentence 5