The Disorder Koro, Where Males Fear That Their Genitals Have

The disorder Koro, where males fear that their genitals have retracted into their body, possibly leading to death, is similar to the episodes of mass madness during the Black Death because ________

A) both demonstrated that mass madness is primarily a physiological disorder.
B) both demonstrated the effect that sociocultural stressors can have on mental functioning of large groups of people.
C) both demonstrated that the responses of other people to the person with mass madness determines whether the person will recover.
D) both demonstrated that it is extremely difficult, if not impossible, to discover the cause of mass madness.