If each orbital can hold a maximum of two electrons, how many electrons can each of the following hold? 2s 5p 4f 3d 4d.

a) 2, 10, 14, 6, 10
b) 2, 6, 10, 14, 10
c) 2, 10, 14, 10, 6
d) 2, 6, 10, 10, 14