Which situation is most clearly ironic? O A. A game of soccer that ultimately ends in a tie
B. A trade route between Asia Minor and Europe
O C. A duel between two aristocrats over an insult
O D. A line of safety goggles that damage the eyes

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.

are you asking for advice? if so, i think its great! i like how you gave specific details. i think you will get a good grade on it!