Electrical power plants dissipate about 2/3 of their input energy into the environment, primarily in the form of hot water at about 20C (35F) above ambient temperatures. What would be some of the challenges in using this "waste heat for the heating of buildings near the power plant? (this has multiple correct answers to get full credit) Select one or more: Oa. The quality of warm water is low due to the low delta temperature (between the building and the water). It leads to very low efficiency b. Operating costs might be high because you would have to move a very large volume of water through the pipes to get enough heat from the warm water c. capital costs would be high to build the piping network to get the warm water to the buildings and back to the power plant