Which of the following explains why a magnetic field does no work on a moving charged particle?( )
选项：

A:The magnetic force depends on the direction of motion of the particle.
B:The magnetic force is always perpendicular to the direction of motion.
C:There is always an electric field that cancels the work done by the magnetic field.
D:The magnetic force depends on the speed of the particle.
E:The magnetic force is conservative.