What is a theme of the story "charles"?
a .betrayal can often shatter one's trust in another.
b. love can blind people to the truth about others.
c. sometimes one's greatest enemy is oneself
d. pride can lead to a false sense of superiority

I think it's either c or d but I'm not sure

this is me

explanation:

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.