Anyone go to k12: online school?

Which sentence in this excerpt from leo tolstoy’s the death of ivan ilyich suggests that ivan ilyich felt his family and friends didn’t understand him and neglected him?

Which statement contains an opinion? the ants serve to protect the acacia from other plants and herbivores. the acacia depends on pollinators for the exchange of genetic material. the acacia has no chemical defenses to discourage herbivores. the ants provide the acacia with the best protection from other plants and herbivores.

Why does the author of exploring the titanic give background information about his youth and education? to show his lifelong love for the ocean