The angles of elevation of the top of a tower from two points A and B lying on the horizontal through the foot of the tower are respectively $$15^\circ and 30^\circ$$, If Aand B are on the same side of the tower and AB=48 m, then the height of the tower is

A

$$24 \sqrt{3}$$ m

B

24 m

C

$$24 \sqrt{2}$$ m

D

96 m