Which of the following describes the concept of electrification in the context of sustainable building...

Electrification means shifting building systems and equipment from direct fossil fuel combustion to electric alternatives. Examples include replacing gas furnaces with electric heat pumps, gas water heaters with heat pump water heaters, and gas cooking equipment with electric or induction appliances. This supports decarbonization when paired with efficient design and cleaner grid or renewable electricity. Option A is incorrect because electrification is not intended to increase dependence on coal; its value improves as the electricity supply becomes cleaner. Option C is related to energy efficiency, but it does not define electrification. Efficiency reduces energy demand, while electrification changes the energy source. Option D is the opposite of electrification because it increases on-site fossil fuel combustion.