The correct answer is:
A. Many students have jobs, and an extended school day would decrease the hours they could work.
A counterclaim is a claim made to offset another claim, especially one made by the defendant in a legal action. In this especific statement, the only counterclaim that responds directly to this claim is the fact that students won't have enough paid hours and that will affect directly their lifestyle and wealthness, involving also their school performance.
The correct answer is D. "<span>I'd rather we had stayed home and watched movies, to tell the truth.".</span>
#1 have it arranged in alphabetical order
#2 avoid listing every word or sentence.