Answer: C) self-disclosure.
Explanation:
Self-disclosure is the property of interaction and conveying thought or information about one-self with other person.Person tends to share feelings, views, beliefs, emotions, ideas, goals,likes,dislikes,fear etc through communication.It helps to describe and assess any person.
According to question,Natasha and Dimitri are communicating about their desire and fears in their relationship describes self disclosure.
Other options are incorrect because romantic love and affection, mere exposure effect and selflessness does not relate with communicating to describe oneself.Thus, the correct option is option(C).
