Combustion of butane gas?

Question

The complete combustion of 0.40 moles of butane gas, C4H10, will

a.consume 5.2 mol O2 and produce 3.2 mol CO2.
b.consume 0.40 mol O2 and produce 0.20 mol CO2.
c.consume 2.6 mol O2 and produce 1.6 mol CO2.
d.consume 1.3 mol O2 and produce 0.80 mol CO2.
e.consume 0.80 mol O2 and produce 0.40 mol CO2.

Answer 1

2 C4H10 + 13 O2 -> 8 CO2 + 10 H2O

c.consume 2.6 mol O2 and produce 1.6 mol CO2.