How Many Molecules of Methane Are in 0

Multiple Choice

How many molecules of methane are in 0.500 mol of CH₄ gas?

A) 1.20 x 1023 molecules
B) 1.20 x 1024 molecules
C) 3.01 x 1022 molecules
D) 3.01 x 1023 molecules
E) 3.01 x 1024 molecules