The effective speaker will especially read the audience's __________ cues, such as nodding of the head or confused looks, to assist in the speech's presentation

The term for the tendency of humans and other animals to lay claim to and defend a particular area is .

Fill in the blank(s) with the appropriate word(s).

Beth sends Julian an e-mail asking him to meet her at the bank at 2:30 p.m. She is on time, but Julian doesn't arrive until 3:15 p.m. When she asks him why he is late, he replies, "I came as soon as I got your message." The problem they are encountering may stem from the fact that a message sent by e-mail is __________.

A. synchronous B. instantaneous C. asynchronous D. unreliable