The pulse rates, in beats per minute, for some students of a class are shown below:

82, 88, 67, 88, 85, 67, 79, 76, 79, 67, 88, 67, 85, 79, 67, 88, 79, 88, 76, 67

Midge created the following incorrect dot plot to represent the data:

What should Midge do to make the dot plot correct?
A. Put another dot on 79

B. Put another dot on 76

C. Delete one dot on 88

D. Delete one dot on 67