Which excerpt from "going back to school" adds to the theme that being unhappy in a particular situation can make one feel imprisoned? a. the boat ploughed on. now alcatraz was past and all the grey waves flamed to red again at the dead sun's last glimmer. far and vast b. the sky was like a cup some rare wine fills, and stars came as he watched – and he was free c. with laughter beating in a clamorous tide. . saw once again the heat of harvest fume up to the empty sky in threads like glass, d. the ship slowed, jarred and stopped. there, straight ahead, were dock and fellows. stumbling, he was whirled out and away to meet them – and his back

faulty parallelism is a construction in which two or more parts of a sentence are equivalent in meaning but not grammatically similar in form.

the correct version of this faulty parallelism in the sentence is:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

the problem is the last sentence, the first two have a basic subject+verb+object structure.

so, to give a proper balance to the structure, or better said, to give a parallel structure, we must write a basic s+v+o structure in all three sentences:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

you didn't list the options but im guessing it's resolving contradictions