#6 Dave surveyed 80 7th-graders and 90 8th-graders. He found that about 75% of the 7th-graders like pop music, while 80% of the 8th-graders like pop music. Do more 7th graders or more 8th-graders like pop music?
A. More 7th-graders; 75% of 80 is greater than 80% of 90
B. More 7th-graders; 75% of 80 is less than 80% of 90.
C. More 8th-graders; 75% of 80 is greater than 80% of 90.
D. More 8th-graders; 75% of 80 is less than 80% of 90.
