The dotplots below display the scores for two classes on a 30-point statistics quiz. Class A has 26 students and Class B has 25 students. 2 dot plots. For Class A, the dots are spread out more. For Class B, the dots are more grouped together.

Which statement best compares the variability of the quiz scores for Class A and Class B?

The scores on the quiz for Class A have more variability than the scores for Class B.
The scores on the quiz for Class B have more variability than the scores for Class A.
The scores on the quiz for Class A have less variability than the scores for Class B.
The scores on the quiz for Class B have about the same variability as the scores for Class A.

I think its (A), The scores on the quiz for Class A have more variability than the scores for Class B. Can someone check me?