[单项选择]Did you know that all human beings have a "comfort zone" regulating the distance they stand from someone when they talk This distance varies in interesting ways among people of different cultures.
Greeks, some of the Eastern Mediterraneen, and many of those from South America normally stand quite close together when they talk, often moving their faces even closer as they warm up in a conversation. North Americans find this awkward and often back away a few inches. Studies have found that they tend to feel most comfortable at about 21 inches apart. In much of Asia and Mrica, there’s even more space between two speakers in conversation. This greater space subtly lends an air of dignity and respect. This matter of space is nearly always unconscious, but it is interesting to observe.
This difference applies also to the closeness with which people sit together, the extent to which they lean over one another in conversation, how they move as they argue or make an emphatic (强调的) poi
A. take someone’s arm to help him across a street
B. direct someone along an unfamiliar street
C. hate bodily contact
D. both A and Ｂ.