Raul came to the United States from Mexico three months ago, and he is still having trouble understanding Americans' tendency to rush all the time. He is also surprised when his teachers are irritated if he joins class several minutes after class has started. Raul's confusion about Americans' pace of life is based on which aspect of nonverbal behavior?

	a.	artifacts
	b.	chronemics
	c.	paralanguage
	d.	kinesics
	e.	proxemics