Final answer:
The coal-fired power plant focuses on a nonrenewable energy source, unlike the other options (solar farm, hydroelectric plant, and wind turbine field).
Step-by-step explanation:
The location that focuses its use on a nonrenewable energy source is the coal-fired power plant (d). Nonrenewable energy sources like coal are finite and cannot be replenished within a human timescale. On the other hand, options like a solar farm, hydroelectric plant, and wind turbine field use renewable energy sources such as solar, water, and wind, respectively.