What is the mode in the following example: 5 people eat pizza 1 time a week; 7 people eat pizza 2 times a week; 10 people eat pizza 3 times a week; 8 people eat pizza 4 times a week; and 2 people eat pizza 5 times a week.

a. 2 times a week
b. 3 times a week
c. 4 times a week
d. 5 times a week