The heating element in an electric kettle is usually located near the bottom of the kettle because

• A.water is a good conductor of heat
• B.heat can be more quickly radiated to all parts of the water
• C.no heat can be lost to the surroundings
• D.the convectional currents which are set up can carry heat to all parts of the water
• E.the molecules of the heating element can carry heat to all parts of the water.