The Complete Combustion of Propane, C₃H₈(g), Is Represented by the Equation

The complete combustion of propane, C₃H₈(g) , is represented by the equation: C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(l)     ΔH° = -2220 kJ
How much heat is evolved in the complete combustion of 12.5 L C₃H₈(g) at 25°C and 790 mmHg?

A) 8.27 × 10⁴ kJ
B) 1.41 × 10⁴ kJ
C) 653 kJ
D) 168 kJ
E) 1180 kJ