Consider materials A and C. In material A, the electrons can move at a speed VA = 3600 m/s. In material B, the electrons can move at a speed VB = 500 m/s. In material C, the electrons can move at a speed VC = 1 m/s. If we assume that "moving freely means "how fast," then which one best describes these materials? A is an insulator, B is a conductor, and C is a semiconductor. A is a semiconductor, B is an insulator, and C is a conductor. None of the above. A conductor, B is a semiconductor, and C is an insulator.