The Atomic Mass of Cobalt Is 58

The atomic mass of cobalt is 58.933 u. How many moles of Co are there in a 7.60 g sample of cobalt?

A) 0.106 moles
B) 0.114 moles
C) 0.123 moles
D) 0.129 moles
E) 7.79 × 10²² moles