What is common to the following plants: Nepenthes Psilotum, Rauwolfia and Aconitum ?

Options

A. All are ornamental plants.
B. All are phylogenic link species.
C. All are prone to over exploitation.
D. All are exclusively present in the Eastern Himalayas.

Answer

C

Explanation

All of the above plants are prone to over exploitation due to their respective properties. Nepenthes (pitcher plant) is an insectivorous plant, Psilotum is a pteridophyte and Aconitum is a medicinal plant.