Question #N264

A study of a group of 50 people found that 45% of them preferred to eat breakfast at home, while the remaining preferred to eat breakfast at a restaurant. Based on these findings, what is the difference, in percent, between the number of people who prefer to eat breakfast at home and the number of people who prefer to eat breakfast at a restaurant?

Which of the following choices correctly completes the text so that it conforms to the conventions of Standard English?
A. percentage
B. percent
C. percents
D. percentage points