It is appreciated
Explanation:
-Nonverbal communication isn't precise at least 65% of the time (Not in terms of sign language)
-Nonverbal communication is not easy at all it can be actually quite difficult to understand (Unless you have an establishment of basic movements to replace certain terms. For example, one finger up means "I need a new pencil" [Referring to a school setting] )
-Nonverbal communication is most certainly not necessary, especially if you have the authorization and the capability to talk
-Nonverbal communication most definitely can be appreciated in certain environments (i.e. School, library, etc.)
The answer is A. Mercedes threw Andrea, Mercedes' best friend, a surprise party last night. This choice uses an appositive ("Andrea, Mercedes' best friend,") to combine the two sentences. An appositive is a phrase separated from the rest of the sentence by commas that describes something (in this case Andrea).
Choices B and C are incorrect because the uses of the words "but" and "when" to combine the sentences do not make logical sense. Choice D is incorrect because it uses a comma to combine the sentences without a conjunction, creating a run-on sentence.
Hope this helps!
