Professionals seem to perform poorly in detecting lies via examining nonverbal behavior because

a. they do not pay sufficient attention to facial expressions and hand movements of interviewees

b. they do not know where to look and have false beliefs about which behaviors might be clues to deception

c. they do not pay sufficient attention to facial expressions and have false beliefs about which behaviors might be clues to deception

d. they do not know where to look and do not pay sufficient attention to facial expressions