In which among the following option endosperm is completely consumed by the developing embryo?

Pea and groundnut.

The correct answer is Option (3)- Pea and groundnut.

Endosperm is a tissue that surrounds the embryo in a seed. It is a food reserve that is used by the embryo to grow and develop. In some seeds, the endosperm is completely consumed by the developing embryo, while in others, it remains as a storage tissue.

Non-albuminous seeds are seeds in which the endosperm is completely consumed by the developing embryo. Examples of non-albuminous seeds include peas, beans,groundnut.

Albuminous seeds are seeds that have a large amount of endosperm, which is a tissue that stores food for the developing embryo. Examples of albuminous seeds include wheat, maize, and castor.

Therefore, the answer is pea and groundnut.