Correct option (a) groundnut and nomegranate
Explanation:
Cotyledons and testa are edible parts of groundnut and pomegranate respectively. The edible part of walnut is cotyledon, tamarind-mesocarp, french bean-seeds, coconut-endosperm, testa, cotyledons and embryo, cashewnut-cotyledons and fleshy pedicels and of litchi is fleshy aril.