The Formation of Terrestrial-Type Planets Around a Star Is Most

Multiple Choice

The formation of terrestrial-type planets around a star is most likely to have occurred by what process?

A) accretion, or slow accumulation of smaller particles by mutual gravitational attraction
B) breakup of a large disk of matter that formed around the star
C) capture of objects traversing the depths of space by the star
D) condensation of gas from the original star nebula