answer: C
It's C as the climax is when the story is most exciting. Its C as it says there's high stakes and ratchets up tension which in return make the story very exciting.
The setting of a story help the reader better understand the character's personality by showing and giving details of what the character does in the setting.
The answer to your question is,
Andropause. It's a decline in testosterone.
-Mabel <3