How does good exposition help the reader?

A. It gets readers invested in the characters and the setting.

B. It tells the reader what finally happens to the characters.

c. It forces the reader to wonder what is happening.

D. It increases the tension shortly before the climax.

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.