How is "the think tank" similar to "the day the gulls went crazy"? a. both focus on people who want to understand what animals understand about language. b. both focus on animals who come to see certain people studying them as threats to their well-being. c. both focus on individual researchers who work hard to learn more about animals. d. both focus on scientists who must disguise themselves to work with animals.

i think the answer is b..

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.