Derek Has Had an Orgasm and Is Unable to Have

Derek has had an orgasm and is unable to have another one just yet.His fiancée,Emma,however,has not had an orgasm yet.Her heart rate and blood pressure are rising,but at a slowing rate.In addition,the muscles in her vagina are tightening.With respect to the human sexual response cycle,Derek is in the __________,while Emma is in the ________.

A) refractory period; excitement phase
B) refractory period; plateau phase
C) plateau phase; excitement phase
D) resolution phase; plateau phase