What are the mean, median, and mode for the following data set?

15, 34, 78, 90, 100, 75, 87, 71, 75, 78, 82, 90, 94, 78
A.
mean- 74.8, median- 78, mode- 78
B.
mean- 78, median- 78, mode- 78
C.
mean- 73, median- 78, mode- 90
D.
mean- 73, median- 78, mode- 75