Watch the video of Norman. What type of energy transformation is happening?

Norman sliding his foot across the floor.

A. Electrical energy is created by friction when his foot slides across the floor.
B. The mechanical energy of his foot moving across the floor is transformed into chemical energy.
C. When his foot is sliding across the floor, it creates heat energy through friction.
D.When his foot rubs against the floor, the energy of motion changes into light energy.