Concept: This question tests your understanding of seed types based on the presence or absence of endosperm in the mature seed.

Why (C) Castor is correct:
Castor (Ricinus communis) is an example of an endospermic (or albuminous) seed. In endospermic seeds, the endosperm persists in the mature seed and serves as the primary food storage tissue for the developing embryo.

Why other options are wrong:
(A) Bean: Bean is a non-endospermic (exalbuminous) seed; the endosperm is completely consumed during embryo development, and food is stored in cotyledons.
(B) Pea: Pea is a non-endospermic (exalbuminous) seed; the endosperm is completely consumed during embryo development, and food is stored in cotyledons.
(D) Gram: Gram (chickpea) is a non-endospermic (exalbuminous) seed; the endosperm is completely consumed during embryo development, and food is stored in cotyledons.

Common Mistake: Students often confuse endospermic and non-endospermic seeds. Remember that most dicots are non-endospermic, but some, like castor, are exceptions.

NEET Tip:
Endospermic seeds (Albuminous): Food stored in endosperm. Examples: Castor, Maize, Wheat, Rice, Coconut.
Non-endospermic seeds (Exalbuminous): Food stored in cotyledons. Examples: Bean, Pea, Gram, Groundnut, Mango.

Correct Answer: (C)