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.
His face was as red as an apple.
The use of the pronoun "we" in the final sentence of the excerpt; unites Kennedy with the everyday Americans to whom he is speaking.
<h3>Plural Pronouns</h3>
From the excerpt, it follows that the speech was addressed to the citizens which indicates All Americans.
The last sentence reads thus; In the last 24 hours, we had their answer.
The use of the first person plural pronoun, we indicates that Kennedy was referring to himself and the everyday Americans as used in the context.
Read more on Plural pronouns;
brainly.com/question/928913