What is one argument made by people who support state aid to parochial schools?

The answer is: "Parochial Schools Save The State Money".

The good choice is:

1. He  asked for more troops.

Explanation:

Gen. William Westmoreland was the architect of the massive deployment of US troops in Vietnam since 1965. Over half a million soldiers were serving in Vietnam during the peak of American military presence there. The 1968 Tet Offensive by the North Vietnamese and the Viet Cong took many cities in the first days of the battles and surprised the US comand and its South Vietnamese allies.

Nevertheless, the US-South Vietnamese forces fought back and made communist troops to withdraw. Though it was a military setback, it was a spectacular political and propaganda victory for the Vietnamese communists. American public opinion could see that  war was not being won, that it was getting too long, bloody and too messy, with no certain outcome in sight.

Westmoreland asked for more troops, but Washington refused his request.