An electron falls from rest through a vertical distance h in a unifrom and vertically upward directed electric field E . The direction of electric field is now reversed keeping its magnitude the same . A proton is allowed to fall from rest in it through the same vertical distance h. The time of fall of the electron , in comparisonn to the time of fall of the proton is

Options

A. 10 times greater
B. 5 times greater
C. smaller
D. equal