A Projectile Fired from a Gun Has Initial Horizontal and Vertical

Multiple Choice

A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 30 m/s and 40 m/s, respectively.
-At what angle is the projectile fired (measured with respect to the horizontal) ?

A) 37°
B) 40°
C) 45°
D) 53°
E) 60°