Answer:
D. age regression.
Explanation:
Age regression: The term "age regression" is defined as the process that occurs when a person "mentally retreats" to an earlier age of his or her life. A person feels in various ways that he or she is back at an earlier age of his or her life and therefore can exhibit or possess childish behaviors as well. A few people tend to go back to previous years of age. Age regression is often considered as a coping mechanism to help a person in order to eliminate stress and feel relax.
In the question above, the given statement represents the "age regression".