Which of the Following Best Describes How Earth's Moon Formed

Which of the following best describes how Earth's Moon formed?

A) The Earth and Moon formed at the same time.
B) Early in the history of our solar system, an asteroid was captured by Earth's gravity and became the Moon.
C) Early in the history of our solar system, a protoplanet collided with Earth, sending debris into orbit that coalesced to form the moon.
D) During the late heavy bombardment, a group of comets were captured by Earth's gravity and coalesced to form the moon.