Potato is commonly eaten as a source of carbohydrates. It is a :
stem tuber
The correct option is: A
Explanation of the correct option :
Explanation of the incorrect option:
Option B:
Rhizomes are fleshy underground stems that grow horizontally and stores proteins and starches.
Option C:
Bulb are composed of compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem.
Option D:
Corn is a fleshy, swollen, underground plant stem that is a storage organ used by some plants.
Final answer: Potato is commonly eaten as a source of carbohydrates. It is a stem tuber.