Which of these uses pathos? A. Yum Organics has been providing well-rounded organic lunches to
schools on the West Coast for more than 15 years.
B. We are starving because the food, if you can call this slop "food,"
at our school is not fit for the lowest grub on this fine Earth!
O C. The food at our school is O. K.; however, I wish we had more
organic choices.
D. All of the other schools in our district offer organic foods in the
lunchroom; therefore, our school should offer organic foods as
well.

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.