A Stone Is Thrown with an Initial Speed of 11

Multiple Choice

A stone is thrown with an initial speed of 11.5 m/s at an angle of 50.0 above the horizontal from the top of a 30.0-m-tall building. Assume air resistance is negligible, and g = 9.8 m/s2.
-What is the magnitude of the horizontal-velocity component of the rock as it hits the ground?

A) 79.5 m/s
B) 8.81 m/s
C) 58.7 m/s
D) 7.39 m/s