Identify the correct statement:(a) In many Citrus and Mango varieties some of the nucellar cells surrounding the embryo sac start dividing, protrude into the embryo sac and develop into the embryos.(b) Occurrence of more than one embryo in a seed is referred to as polyembryony.(c) Asteraceae and grasses, have evolved a special mechanism, to produce seeds without fertilisation, called apomixis.