Orgasmic dysfunction is one form of

A) erotic plasticity.
B) STI.
C) refractory period.
D) sexual disorder.

Orgasmic dysfunction is a type of sexual disorder characterized by the inability to achieve orgasm or delays in achieving orgasm, causing significant distress or interpersonal difficulty. Erotic plasticity refers to the flexibility of one's sexual orientation and behavior, and is not related to orgasmic dysfunction. STIs and refractory period are also not related to this issue.