Answer:
B. to inform readers about the location
D. to entertain readers by showing how dramatic the situation is
Explanation:
The Hot Zone: A Terrifying True Story is a nonfiction thriller written by Richard Preston, about the origins and incidents regarding viral hemorrhagic fevers.
In this particular excerpt, Preston describes a scene of children playing in a park, while sick monkeys are in a laboratory near them. In this way, the writer informs the readers about the location and provides setting. This description also builds tension and makes the situation dramatic, as the lives of children are being risked. The children are not being evacuated, even though they are in danger.