Answer:
He is frightened. He doesn't know what to expect and fears for himself.
D. Is my answer. Thanks for telling me the reference.
The heroism of unquestioning sacrifice is the correct answer.
Animals migrate to other habitants to find food
Come of age means growing up. When you have more responsibilities, when you're moving from childhood to adulthood and understand more things. When you are changing but not only physically, also mentally. When you are becoming more MATURE.
