Two Identical Balls Are Thrown from the Top of a Building

Multiple Choice

Two identical balls are thrown from the top of a building with the same speed. Ball 1 is thrown horizontally, while ball 2 is thrown at an angle θ above the horizontal. Neglecting air resistance, which ball will have the greatest speed when hitting the ground below?

A) Ball 1
B) Ball 2
C) Both balls reach the ground with the same speed.
D) Cannot be determined without knowing the height of the building.
E) Cannot be determined without knowing the time each ball is in the air.