Answer:
I am going to take a stab at it and say A) 60%
Explanation:
the reason I said A) 60% was because if you get the total number of students that are taller than 60 inches and divide by the whole number that should give the right percentage:
9 students above the height of 60 inches
15 students total
9/15=.6
.6 = 60%
^^this is how I got my answer, I hope this helps!! :)))