When christa gets angry, she gets motivated to become productive so that whatever is making her angry can be overcome. she also notices that whenever she is angry she gets very warm and starts to perspire excessively. these psychological and physical changes demonstrate the functions of an emotion.

These psychological and physical changes demonstrate the intrapersonal functions of an emotion.

Explanation:

Christa is experiencing anger as an intrapersonal function of an emotion because she is demonstrating the role that emotions play within each person individually. She experiences physical symptoms herself and she becomes more aware and productive herself when she becomes angry. This gives her personal motivation to overcome the obstacle or entity that is making her angry. One of the intrapersonal functions of emotion is that they help us to act quickly with little conscious awareness of the reason for the motivation and alertness.

c. reserves power to the states and people