How are the molar mass and empirical formula mass for a compound related

A)That are the same concepts.
B)The molar mass is a whole-number multiple of the empirical formula mass.
C)The molar mass can be obtained from the empirical formula mass by multiplication to 6.022 x 10^23
D)The empirical formula mass is a whole-number multiple of the molar mass

Thank You in advance!!

It is B. empirical formula mass is a condensed version of molar mass.

I think it's B.