The correct option is D Aril and thalamus respectively
The fleshy edible part of litchi is the fleshy aril which is a modification of the outer layer of the seed coat known as a testa.
In most plants, by the time the fruit develops from the ovary, other floral parts degenerate and fall off. However, in a few species such as apple, strawberry, cashew, etc., the thalamus also contributes to fruit formation. Such fruits are called false fruits.
So, the correct answer is "option C"