The correct option is D Rauwolfia
Resperine, is an indole alkaloid, antipsychotic and antihypertensive drug that has been used for the control of high BP. Resperine was isolated in 1952 from the dried root of Rauwolfia serpentina or Indian snakeroot and has been used for centuries in India for the treatment of insanity and for snake bites.
Thus, the correct answer is option (C), 'Rauwolfia'.