The correct answer is D. Operational control
Operational control is some sort of authority to give command for the employees in order to do more efficient works. A company impose operational control through a supervisor, usually by giving the employees a guideline and a deadline
John Cornyn is a lawyer and is the senior United States Senator from Texas since 2002. He is the current Senate Majority Whip for the 115th Congress.
I would guess the Mestizo. there's a link to help you if need more help.