read the information published on a .com website. the human body needs vitamins to stay healthy. people often do not get enough vitamins in their diet, so they need to take vitamin supplements. our vitamin supplements are the best supplements on the market. if you want to stay healthy, you should buy megaplus vitamins.
which statement best reflects the credibility of the source of the information?
a. the source is credible because it is true that humans need vitamins.
b. the source is credible because the author cares about people’s health.
c. the source is not credible because its purpose is to sell a product.
d. the source is not credible because it is published on a website.

C. The source is not credible because its purpose is to sell a product.

so what i read it

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.