Explanation:

- Understanding Resignation Protocol for State Public Service Commission Member:

- Members of the State Public Service Commission hold a constitutional position.

- Protocol requires them to address resignation letters to the appointing authority.

- Option Analysis:

- Option 1 - President: Incorrect, as the President is not directly involved in state commissions.

- Option 2 - Governor: Correct, since the Governor is the appointing authority for state commission positions.

- Option 3 - Chief Justice of India: Incorrect, as this position is unrelated to state commission resignations.

- Option 4 - Chief Minister: Incorrect, as the Chief Minister is not the appointing authority.

- The correct answer is Governor from Option 2.