Answer:
This question is incomplete. Here are the missing options:
The answer is a. James-Lange theory.
Explanation:
Psychologists Williams James and Carle Lange developed what is known as the James-Lange theory of emotion. The theory states that emotions are the result of physiological reactions, which are then recognised by the person and expressed as a certain emotion.
For example, if a person is about to ride a rollercoaster, his hands might start sweating and his heart will beat faster. The person will recognise these reactions, and say he feels nervous.