Determining s character of an atom

While determining the s-character of an atom in a molecule, should I only pay attention to the hybridized orbitals? For example, in the following question, I knew that two orbitals were sp hybridized (and should have 50% s character) but I also accounted for the two unhybridized p-orbitals because the question asked for the s-character of the atom in its entirety. How would you answer the question?

“The s character of the carbon atom in HCN is:"

A) 25% s and 75% p.
B) 50% s and 50%...

Determining s character of an atom