The correct option is C Rauwolfia serpentina
Rauwolfia serpentina, or Indian snakeroot or sarpagandha, is a species of flowering plant in the family Apocynaceae. It is native to the Indian Subcontinent and East Asia. Rauwolfia serpentina contains a number of bioactive chemicals, including reserpine, ajmaline, deserpidine, rescinnamine, serpentinine. A compound which it contains called as reserpine, was used in an attempt to treat high blood pressure and mental disorders including schizophrenia. Oryza sativa is a rice plant. Solanum melongina is a brinjal plant. Saccharum officinarum is a sugarcane plant. Thus, the correct answer is option C.