How did the immigrants in Salt Lake City feel about "Operation Safe Travel"

A．people are less likely to lie in instant messages
B．people are unlikely to lie in face-to-face interactions
C．people are most likely to lie in email communication
D．people are twice as likely to lie in phone conversations

A．salesmen can talk directly to their customers
B．salesmen may feel less restrained to exaggerate
C．salesmen can impress customers as being trustworthy
D．salesmen may pass on instant messages effectively