A building is to be braced by means of a beam which must pass over a wall. If the wall is 3-3/8 feet high and stands 8 feet from the building, find the shortest beam that can be used.

A. 15-5/8

B. 17-7/8 ft

C. 13-3/8 ft

D. 11-1/8 ft

Please send me solution for this in handwritten form for me to able to understand much better. Thanks tutor. and the answer here is letter A however i dont know its solution.