In `triangle ABC` ,D and E are the points on sides AB and AC, respectively, such that DE || BC. If AD /BD = 3/4 ,Then ratio of the area of trapezium DECB to the area of `triangle ABC` is:

Options

A. `49 : 33`
B. `49 : 40`
C. `40 : 49`
D. `33 : 49`

Answer

C