The Effectiveness of an Herb Derived from the Snakeroot Plant

The effectiveness of an herb derived from the snakeroot plant that can be used to diminish hallucinations, delusions, and other symptoms commonly seen in schizophrenia was:

A) first recognized by traditional practitioners of medicine in India more than 2,000 years ago.
B) first discovered by French scientists in the 1950s.
C) accidentally discovered when it was used as an ingredient in bottled water and some soft drinks, such as 7-Up.
D) first described by Sigmund Freud and initially used as part of traditional psychoanalysis.