Most Large Regular Moons Probably Formed

Most large regular moons probably formed

A) when passing asteroids were captured by the gravitational field of their planet.
B) at the same time as their planets and grew by accretion.
C) after a collision between a planet and a large asteroid fractured off a piece of the planet.
D) after the period of heavy bombardment in the early Solar System.
E) after a planet got kicked out of its orbit and was gravitationally captured by another planet.