A projectile is launched with speed v_{0} off the edge of a cliff of height h, at an angle \theta from the horizontal. Air friction is negligible. To maximize the horizontal range of the projectile, \theta should satisfy
Answer Choices
A. 45^{\circ}<\theta<90^{\circ}
B. \theta=45^{\circ}
C. 0^{\circ}<\theta<45^{\circ}
D. \theta=0^{\circ}
E. \theta<45^{\circ} or \theta>45^{\circ}, depending on the values of h and v_{0}.