Answer:
B. The lower quartile of Class A is greater than the lower quartile of Class B.
Explanation:
The reason that the first choice is not correct is because when you look at the median Class A median is lower than the median of Class B.
The second choice is correct because the lower quartile of Class A is greater than the lower quartile of Class B.
The third choice is not correct because the upper quartile of Class B is greater than the upper quartile of Class A.
The reason that the last choice is not correct is because the maximum of Class B is higher than the maximum of Class A.