How Many Molecules of HCl Are Present in 0

How many molecules of HCl are present in 0.250 mol of HCl?

A) 4.15 × 10⁻²⁵ molecules
B) 1.51 × 10²³ molecules
C) 2.41 × 10²⁴ molecules
D) 9.11 molecules
E) 0.250 molecules