I believe the answer to your question would be young adults who want to stay healthy.
In this excerpt of "Two Kinds", by Amy Tan, the characterization technique that the author uses is <em>Direct Characterization</em>. In Direct Characterization, the author tells us what he or she wants us to know about the character. He writes about the character's physical appearance, actions, attitudes, inner thoughts, and what others think about the character.
Answer:
answer is b) the sentence is fine as it is.
A. a situation when the audience knows but the character doesn't not
