If Unshaded Spheres Represent Nitrogen Atoms and Shaded Spheres Represent

Multiple Choice

If unshaded spheres represent nitrogen atoms and shaded spheres represent oxygen atoms,which box represents reactants and which represents products for the reaction 2 NO₂(g) → 2 NO(g) + O₂ (g) ?

A) box (a) reactants and box (b) products
B) box (a) reactants and box (d) products
C) box (c) reactants and box (b) products
D) box (c) reactants and box (d) products