Answer:
C. "Getting lost" refers to the sensation of losing one's self in a group and even after, shortly affecting memory and self-image.
Explanation:
The idea of "getting lost" in a group can most definitely mean that a person has lost his personal values and beliefs by joining a group and adapting to the values of the group.
When a person loses himself in a group, he loses his self-image and he feels disillusioned.
I would say it is a good book review. You described what happened in detail and I was able to picture the events of the book. However, I would change your answer for the theme. A theme is the moral of a story. For example: "Don't judge a book by its cover," or "All actions have consequences." So find a theme that best fits the story and you'll be good.
B. because our planet's health depends upon biological diversity, we should save the whales.
hope this is the answer you were looking for have a good Monday.