A PLDT tower and a monument stand on a level plane. The angles of depression of the top and bottom of the monument viewed from the top of the PLDT tower are 13° and 35° respectively. The heigh of the tower is 50 m. Find the height of the monument.

A 33.51 m

C. 47.3 m

B. 7.58 m

D. 30.57 m