Consider the following equation: 2NF3 (g) → 1N2 (g) + 3F2 (g)

How can you write this equation in terms of volumes (V)?
a 2V of NF3 → 2V of N2 + 3V of F2
b 1V of NF3 → 1V of N2 + 3V of F2
c 2V of NF3 → 1V of N2 + 3V of F2