What caused Columbia disaster according to this passage

A．To give an example of someone who was the subject of one of Stowe’s biographies.
B．To give an example of another author who used local dialect in his writing.
C．To suggest that his work was less popular than Stowe’s.
D．To point out another author who wrote about New England.

A．She doesn’t want to answer the question.
B．She doesn’t understand what the man said.
C．She is also a newcomer in the city.
D．She is going that way, too.