What is the mode of the data set?
103, 77, 90, 102, 103, 81, 78, 84, 84, 87, 99, 103, 118
A84
B90
C93
D103
103, 77, 90, 102, 103, 81, 78, 84, 84, 87, 99, 103, 118
A84
B90
C93
D103