Phone calls are:.
A) incapable of conveying nonverbal signals.
B) only acceptable for external communication.
C) capable of offering the give-and-take of in-person conversations.
D) no longer practical due to IM and texting. E) preferable to electronic media when you need a permanent record.

The correct answer is letter "C": capable of offering the give-and-take of in-person conversations.

Explanation:

While talking about channels of communication, phone calls are useful to imitate the closest possible to face-to-face communication, with its limitations. The transmission of information is done in real-time and the participants can provide their points of view just as if they were talking in person.  

Though, expressions cannot be captured. Many people over the phone can pretend to have a mood modulating their tone of voice even if their feelings are opposite.

b. a single paragraph.

a paragraph is a series of sentences that are organized and make sense, and are all related to a single topic . almost every piece of writing you do that is longer than a few sentences should be organized into paragraphs. this is because paragraphs show a reader where the subdivisions of an essay begin and end, and thus the reader see the organization of the essay into subjects in order to be able to understand its main points.

answer; i believe the answer is 40,600,000;