Step 1: Cite the article.
Article 156: a Governor holds office during the {pleasure of the President} and normally for a term of five years subject to pleasure.
Step 2: Contrast with other offices.
Election Commissioners enjoy removal protection akin to SC judges (Art. 324); Speakers vacate on ceasing to be member or by resignation/removal by the House; SC judges have fixed tenure with a rigorous removal process (Articles 124(4), 124(5)).
Step 3: Conclude.
\[
\boxed{\text{Governor (Option C).}}
\]