A scientist theorizes that, several billion years ago, a large asteroid collided with Earth, knocking tons of rock into space and creating the Moon. Which statement constitutes a research hypothesis that follows from this theory?
A. It is possible to someday inhabit the Moon.
B. Moon rock should be made of the same elements as Earth rock.
C.The universe was created by the Big Bang.
D. The Moon will itself someday collide with Earth.