I think it is c. It rasied federal taxes on wealthy farmers which were used to provide social welfare benefits to poor farm laborers
Cogeneration is the process of taking a waste product or process and producing heat and generating electricity from it at the same time.
It could be collection of waste heat from the original generation of electricity or burning of biodiesel, ethanol or methane gas from sewer or cow dung. The only answer where electricity is using or creating heat and generating electricity power is A.
Answer:
B) European imperial rivalries and competition fueled empire building in the new world.