The correct option is A Hesperidium
In hesperidium, fruit the endocarp projects inwards forming distinct chambers and epicarp and mesocarp fuse to form the separable part. A hesperidium is a modified berry with a tough, leathery rind. The peel contains volatile oil glands in pits. The fleshy interior is composed of separate sections, called as carpels, filled with fluid-filled vesicles that are actually specialized hair cells. The outer ovary wall becomes the thick spongy layer of the rind, while the inner ovary wall becomes very juicy with several seeds. Unlike most other berries, the rind of cultivated hesperidia is generally not eaten with the fruit because it is tough and bitter.
Thus, the correct answer is option A.