A toy cannon shoots a pellet at an angle of 75. 0° above the horizontal floor. 1. 3 seconds later ball reaches the top of its flight path. Determine the initial speed vo of the pellet.

A. 12. 3 m/s
B. 7. 28 m/s
C. 13. 2 m/s
D. 12. 7 m/s
E. 7. 8 m/s