Botany

Bamboo is the tallest perennial grass, with some species growing over 30 meters in height. It is one of the fastest-growing plants in the world and is widely used in construction, furniture making, and as an eco-friendly alternative to wood.
Thus, the correct answer is Bamboo.

Potato is a modified underground stem, known as a tuber, which stores food. In contrast, carrot, radish, and turnip are all root vegetables that function as storage organs.
Thus, the correct answer is Potato.