Carlos and Maria played a game of rolling two number cubes and finding the sum of the numbers. They recorded how many times each sum was
rolled in the table below.

sum frequency
2 16
3 1
4 5
5 7
6 8
7 18
8 20
9 14
10 14
11 5
12 5

Which statement is true?
A. A sum of 8 was rolled about 14% of the time.
B. A sum of 2 was rolled about 1.8% of the time.
C. A sum of 9 or 10 was rolled about 25% of the time.
D. A sum of 5 or 6 was rolled about 10.1% of the time.