The correct answer is (b). Ginger is a rhizome, which is a modified underground stem. It is a horizontal, fleshy stem that grows horizontally along the ground. Rhizomes are often used for propagation, as they can be easily divided into smaller pieces and each piece will grow into a new plant. Ginger rhizomes are also used as a spice and in traditional medicine.
A bulb is a short, vertical stem that is surrounded by fleshy leaves. The leaves store food, which the plant uses
to grow new leaves and flowers. Examples of bulbs include onions, garlic, and tulips.A tuber is a swollen underground stem that stores food. Tubers are often used for propagation, as they can be easily divided into smaller pieces and each piece will grow into a new plant. Examples of tubers include potatoes, yams, and sweet potatoes.
A modified root is a root that has changed its shape or function to perform a different task. Examples of modified roots include carrots, turnips, and beets.