The Facial Expressions of Stress Among Americans and Japanese Watching

The facial expressions of stress among Americans and Japanese watching a disturbing film sequence were secretly monitored, each group in their own country (Ekman, 1973) . Participants were monitored in two conditions, one in private and the other in public. The results showed that facial stress:

A) was shown by Japanese privately, but not publicly.
B) was never shown by Japanese.
C) was never shown by Americans.
D) was shown by Americans publicly, but not privately.