A 1.5 m long frictionless pendulum of mass 1.6 kg is released from point A at an angle 0 of 10 degrees. What is the speed of the pendulum at point D, half the height up to point E?

A) 0.18 m/s

B) 0.36 m/s

C) 0.47 m/s

D) 0.67 m/s