The mean score for a math test taken by Class A is 84, with the scores ranging from 78 to 94. The mean score for the same math test taken by Class B is 76, with the scores ranging from 68 to 88. Which BEST compares the scores of the two classes?

Responses
A The scores of Class A vary less than the scores of Class B.The scores of Class A vary less than the scores of Class B.
B On average, the scores of Class A are lower than Class B.On average, the scores of Class A are lower than Class B.
C The highest score for the test was in Class B.The highest score for the test was in Class B.
D The scores of Class B vary less than the scores of Class A.

B On average, the scores of Class A are lower than Class B.