Wich statement gives a historical detail that can clarify a reader's understanding of the excerpt

In twelve years a slave, when the passengers on the ship learn robert has smallpox, what is their reaction? “panic-stricken” “indifferent” “relieved” “oppressed”

What if the author had used “looked at” instead? punishment would be deemphasized. punishments would be seen as less harsh. the meaning wouldn't change.

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.