Which one of the following is a stem vegetable

A. Radish

B. Sweet potato

C. Knol-khol

D. None of these

Answer: Option C

Solution(By Examveda Team)

Knol-Khol is a stem vegetable. As with edible tubers, roots and leaves, some vegetables are edible stems also. Knol-Khol and asparagus are among them.
Radish is the root vegetable. Sweet potato is a swollen adventitious root.