Jasna tells Jeremy when they first start dating that she’s uncomfortable with him putting his hands on her shoulders. A few months later, she reveals that this is because she was once in an abusive relationship. Jasna’s increasing self-disclosure to Jeremy reflects which principle?

a. Self-disclosures occur between two people in a close relationship.
b. Self-disclosing is reciprocal.
c. We disclose a lot in a few encounters.
d. Self-disclosures occur gradually over time.

d. Self-disclosures occur gradually over time.