Answer:
b. Administrative Contracting Officer
Explanation:
The officer who is given the responsibility of administering the U.S. government contracts in the Contract Administration Office is called the Administrative Contracting Officer (ACO). For the U.S. military, this office is led by the Contract Administration Office (CAO) Commander. The ACO in the CAO is just one of the officers under the CAO Commander, and she can negotiate contracts on behalf of the U.S. government.