Electromagnetic induction

A bar magnet is used with the same coil in four different situations.

P: The magnet is held stationary inside the coil.
Q: The magnet is moved slowly into the coil.
R: The magnet is moved quickly into the coil.
S: The magnet is moved quickly, but parallel to the coil so flux does not change.

According to Faraday’s law, in which situation is the induced e.m.f. in the coil the greatest?