Final answer:
The s subshell holds 2 electrons, the p subshell holds 6, the d subshell holds 10, and the f subshell holds 14, making option a) the correct answer.
Step-by-step explanation:
The total number of electrons that can occupy the s, p, d, and f orbitals are as follows: an s subshell can accommodate 2 electrons, a p subshell can accommodate 6 electrons, a d subshell can accommodate 10 electrons, and an f subshell can accommodate 14 electrons.
Each orbital within these subshells can hold a maximum of two electrons with opposing spins, according to the Pauli exclusion principle and Hund's rules. The correct total electron capacities for the orbitals are therefore: s= 2, p= 6, d= 10, f= 14, which corresponds to option a).