Although There Is No Official Dividing Line, a Chunk of Rock

Multiple Choice

Although there is no official dividing line, a chunk of rock orbiting the Sun is generally considered an asteroid rather than a meteoroid if it:

A) is larger than 1 cm across.
B) is larger than 1 m across.
C) is larger than 2 km across.
D) has a mass larger than 1% the mass of Earth.