The Fact That the Earth Does Not Go Up in Flames

Multiple Choice

The fact that the earth does not go up in flames in spite of the richness of oxygen in our environment is related to which of the following concepts?

A) the activation energy needed to break bonds.
B) the fact that reactants always have less energy than products.
C) the first law of thermodynmics.
D) the second law of thermodynamics.
E) the abundance of water in our atmosphere which inhibits combustion.