When Student 1 connects her motor to the DC supply, the magnet rotates as expected. When Student 2 does so, the magnet does not spin as expected. Which of the following could have gone wrong? Select all that apply. [: Student 2 covered a bit over one half of the nail in whiteout. [: Student 2 didn't sand the wire ends well enough. The motor was too loose in the cup. [: Student 2 coiled the motor opposite to Student 1's. Student 2 had the nail and magnet aligned too vertically, when it should be at a tilt. C] The nail was rotating on the duct tape, not the coin