A Simple Pendulum,2

Multiple Choice

A simple pendulum,2.6 m in length,is released with a push when the support string is at an angle of 45.0° from the vertical.If the initial speed of the suspended mass is 1.25 m/s when at the release point,what is its speed at the bottom of the swing? (g = 9.8 m/s²)

A) 4.1 m/s.
B) 3.9 m/s
C) 4.1 m/s
D) 16 m/s
E) 7.2 m/s