The correct option is A pea.
In some seeds, during the process of the development of the embryo, endosperm is continuously utilised and hence no endosperm remains in the mature seed. Such seeds are known as ex-albuminous or non-endospermic. The common examples are gram, pea, bean, tamarind, orchid, etc.
In certain seeds, some part of the endosperm is retained in the seed and not completely used up during development of the embryo. Example: maize, castor, coconut.