Your answer would be D) The gentle foothills ended quickly, and the runners made a steep scramble to the top of a cliff, followed by a daylong run up across uneven terrain of hard, coarse-grained rock.
Answer:
D. Using contractions or abbreviations because they are too formal and easily confused, respectively.
Explanation:
This is incorrect because contractions are too informal, rather than too formal. The latter part of the sentence is true - abbreviations can indeed be easily confused.
Contractions should always be avoided when writing a formal text such as a business proposal. Instead of writing <em>I can't, </em>you should always write <em>I cannot </em>instead of its contracted form.
If the article is nonfiction and unbiased, the author most likely wrote the article to inform.
If the article is nonfiction and biased, the author most likely wrote the article to persuade.
If the article is fiction, the author most likely wrote the article to entertain.
<span>¿Invitó a Uds. también?
</span><span>Sí, <u>C. nos</u> invitó.
</span>
Ustedes is used in the plural form, so you need a plural pronoun as well - and <em>nos </em>is the only plural pronoun here.
