Plants Convert Nitrogen into Ammonia $\rightarrow$ H₂(g) + NH₃(aq)
What Is the Stoichiometric Coefficient for the by Enzymes

Multiple Choice

Plants convert nitrogen into ammonia.This biological nitrogen fixation is effected by enzymes called nitrogenases.The enzymes assist in the transfer of electrons.The unbalanced reaction equation is
N₂ (g) +H⁺(aq) +e^- $\rightarrow$ H₂(g) + NH₃(aq)
What is the stoichiometric coefficient for the electrons in the balanced reaction equation?

A) 1
B) 2
C) 4
D) 6
E) 8