Which of the following plant organs is an evolutionary adaptation of a leaf that stores food?

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A bulb is an underground storage organ that evolved from a modified leaf. It stores food and water to fuel the growth of the plant during periods of dormancy, such as winter. Tubers also store food, but they are modified stem structures, not leaves. Pneumatophores are aerial roots that help plants living in oxygen-poor soils to breathe. Rhizomes are horizontal stem structures that allow plants to spread and reproduce asexually. Tendrils are modified leaves or stems that help plants climb or trail along surfaces.

Which of the Following Plant Organs Is an Evolutionary Adaptation