The Native Amerindian Enema and the Old World Enema

The native Amerindian enema and the Old World enema

A) are indistinguishable, except for the type of plants used; in some cases, as in members of the morning glory family, the plants used are in fact markedly similar
B) interestingly enough, are both thought to have come into practice, or been discovered, during the tenth century A.D.
C) are distinguished from one another because while the Old World enema was concerned with clearing the bowels, the New World enema was considered a delivery system for medicines and intoxicants.
D) are really one and the same because the enema was unheard of before the explorers brought the practice back with them and turned it into a European craze in the use of belladonna and opium.