Final answer:
C) Coal power generates the most greenhouse gases compared to solar, wind, and hydroelectric power, and is considered a highly polluting energy source.
Step-by-step explanation:
Among the types of power generation listed, coal power is known for creating the most greenhouse gases. Burning coal for electricity generation is a process that emits a significant amount of carbon dioxide (CO2) and other pollutants into the atmosphere. While sources like solar power, wind power, and hydroelectric power are considered renewable and produce minimal or no direct greenhouse gas emissions, coal power remains a highly polluting energy source. Countries around the world, such as India and China, are making strides to replace coal with renewable energy options like solar and hydro to reduce greenhouse gas emissions.