What is the mean number of children per family in the locality based on the recorded data: 3, 1, 4, 0, 2, 1, 1, 2, 3, 3, 2, 2, 2, 5, 0, 1, 4, 1, 2, 1, 2, 3, 0, 1, 4?
a. 2.5
b. 2.6
c. 2.7
d. 2.8