______ of what had happened to Lisa took all of us by surprise.

A．Situational demands.
B．Different ways of reaction and adaptation.
C．Forms of one's different responses.
D．Individuals' tendency lo the stressors.

A．an individual's response to an external action.
B．a process of one's adaptation to the situation.
C．a demand an external situation places on a person.
D．physical and psychological demands on a person.