One flies a kite with a thread 150 metre long. [f the thread of the kite makes an angle of $$60^\circ$$ with the horizontal line, then the height of the kite from the ground (assuming the thread to be in a straight line) is

A

50 metre

B

$$75 \sqrt{3}$$ metre

C

$$25 \sqrt{3}$$ metres

D

80 metre