An electron with an initial velocity v enters a uniform magnetic field making an angle α with the magnetic field B. It then hits a screen located at a distance D from the entrance point. Assuming 0<α<90°, which of the following statement is true?
A. The time to hit the screen increases if B increases.
B. The time to hit the screen increases if B decreases.
C. The time to hit the screen increases if α increases
D. The time to hit the screen increases if α decreases.
E. The time to hit the screen is independent of α.