what should always be included in an example of formal writing? a. greetings or salutations b. multiple…

Brief Explanations:

Formal writing requires correct grammar to convey ideas clearly and professionally. Greetings/salutations (A) are not always needed (e.g., some formal reports). Multiple paragraphs (B) aren't a strict must - a short formal memo could be one paragraph. Personal signatures (D) are for specific documents like letters, not all formal writing. Correct grammar is fundamental for all formal writing to ensure clarity and respectability.

Answer:

C. Correct grammar