ANS: b, p. 23-24, 28 A, LO=1.8 & 1.10, (3)
APA: LO 2.2; LO 4.4
123. In preparation
for his master’s thesis, Tan spends some time in the local mall observing the behavior of shoppers. His notes reveal a tendency
for people to smile when someone, even a stranger, smiles at them[r]