Dr. yamomoto is very careful to hide her true feelings and control her facial expressions when she is in the presence of the senior administrators in the hospital in which she works. this example illustrates:

display rules of her culture

Explanation:

In psychology, display rules are the socially accepted norms on how one is allowed to express oneself, as in, speech patterns, facial expressions, body language, and so on. In Japanese culture, harmony is highly valued, and in order to preserve this harmony, people tend to avoid conflict as much as possible. This is exemplified by the concept of tatemae - it suggests that, in order not to disrupt harmony, people should try to avoid expressing how they really feel. Dr. Yamamoto is thus following tatemae as she tries to hide her feelings and control her facial expressions before her bosses.

c. wright mills's sociological imagination suggest investigating to explain this increase?

answer; i believe the answer is 80%, plz check first good luck;