At which stage of relational escalation is physical contact and risky self-disclosure most likely to first appear?

A) acquaintance
B) exploration
C) intensification
D) intimacy

Physical contact and risky self-disclosure are most likely to occur during the intensification stage of relational escalation, where individuals start expressing deeper feelings and emotions towards each other. This stage is characterized by heightened levels of intimacy and closeness, which can lead to physical touch and the sharing of personal information.