The mature seeds of plants such as gram and peas possess no endosperm, because
(a) Endosperm gets used up by the developing embryo during seed development
(b) There is no double fertilization in them
(c) Endosperm is not formed in them
(d)These plants are not angiosperms
(a) Endosperm gets used up by the developing embryo during seed development.
Explanation: During or after germination the developing embryo derives its nourishment from the endosperm, which is why plants do not possess endosperm.