In which among the following options a residual endosperm is completely consumed during embryo development ?

pea

The correct answer is Option (2) -pea

The cotyledons of the embryo are simple structures, generally thick and swollen due to storage of food reserves (as in legumes).Mature seeds may be non-albuminous or ex-albuminous.

Non-albuminous seeds have no residual endosperm as it is completely consumed during embryo development (e.g., pea, groundnut).
Albuminous seeds retain a part of endosperm as it is not completely used up during embryo development (e.g., wheat, maize, barley, castor).