Which supporting detail is written objectively?

i imagine many prospectors were homesick living so far from civilization in the yukon wilderness.
jack london is brilliant in providing interesting details such as the chewing-tobacco “beard.”
thousands of men came to canada seeking their fortune in the 1890’s, which explains why few were successful.
the great north american traits of resourcefulness and determination are beautifully illustrated.

The correct answer is C. Thousands of men came to Canada seeking their fortune in the 1890s, which explains why few were successful.

Explanation:

The word objective is an adjective used to describe a statement, detail, text, etc that have not been influenced by personal judgments or opinions, but mainly represent facts. This implies a detail which is written objectively is one that reports reality as it is without letting the author influence the detail. Additionally, it is common for objective details and statements to be written using third person, formal style and an impersonal tone. Considering this, from the options given the detail that is written objectively is "Thousands of men came to Canada seeking their fortune in the 1890’s, which explains why few were successful" because this detail only reports a fact, avoid the use of words that represent a judgment such as "brilliant" or "beautiful", uses the third person "they" and an impersonal tone that shows the author of this details is just reporting reality but it is not influencing or changing the detail which is what objectivity is about.

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.