Under Appropriate Conditions, Nitrogen and Hydrogen Undergo a Combination Reaction

Multiple Choice

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N₂ (g) + 3H₂ (g) → 2NH₃ (g)
If the reaction yield is 87.5%, how many moles of N₂ are needed to produce 3.00 mol of NH₃?

A) 0.166
B) 1.00
C) 1.5
D) 1.71
E) 2.32