Lithium and Nitrogen React in a Combination Reaction to Produce

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s) + (g) → N(s)
In a particular experiment, 5.50 g samples of each reagent are reacted. What is the theoretical yield of lithium nitride?

A) 4.60 g
B) 13.7 g
C) 27.6 g
D) 3.42 g
E) 9.20 g