How Many Moles of H₂O Will Be Produced If 6 $\rightarrow$

How many moles of H₂O will be produced if 6.80 x 10²⁴ formula units of NH₄NO₃ are decomposed in the reaction given below?
NH₄NO₃ $\rightarrow$ N₂O + 2H₂O

A) 0.876 mole
B) 3.30 moles
C) 5.40 moles
D) 22.6 moles