Choose the s-block element from the following:

Options

A. `1s^(2), 2s^(2), 2p^(6), 3s^(2), 3p^(6), 3d^(5), 4s^(1)`
B. `1s^(2), 2s^(2), 2p^(6), 3s^(2), 3p^(6), 3d^(10), 4s^(1)`
C. `1s^(2), 2s^(2), 2p^(6), 3s^(2), 3p^(6), 4s^(1)`
D. all of the above

Answer

C