Which option denotes the energy source the company in the following scenario would avoid?
A new energy company is looking for environmentally friendly forms of energy to produce and market for concerned customers. It has found some good sources of energy, and a few that would be harmful.

A) wind, a renewable but temperamental source

B) wood, a renewable source that produces emissions

C) oil, a nonrenewable source that produces emissions

D) solar energy, a renewable but temperamental source