Given the Equation Below, What Is D H for Burning

Given the equation below, what is D H for burning 8.0 g of C₂ H₂ (g) in excess O₂(g) ?
2 C₂ H₂ (g) + 5 O₂(g) 4 CO₂ (g) + 2 H₂ O ( ) D H = - 2600 kJ

A) - 200 kJ
B) - 400 kJ
C) - 800 kJ
D) - 1600 kJ
E) none of these