The correct option is
A A- 4, B- 1, C- 2, D- 3Endothecium is defined as the lining of the inner cavity of the anther. It is present as a middle layer.
Tapetum is the nutritive layer present. It provides the function of providing nourishment for the growth. It gets extinct by the time pollen develops.
Tulip is a flower, which belongs to the family of Liliaceae. 75 wild species are currently accepted. It is a single flower. T
he receptacle is the thickened part of a stem from which the flower organs grow. In some accessory fruits, like pome and strawberry, the receptacle gives rise to the edible part of the fruit.
So, the correct answer is option A.