The correct option is B Mango
Fruit of mango is an example of a drupe. A drupe or stone fruit is an indehiscent fruit in which an outer fleshy part-exocarp, or skin and mesocarp or flesh surrounds a shell of hardened endocarp with a seed inside. These fruits usually develop from a single carpel and mostly from flowers with superior ovaries. The definitive characteristic of a drupe is that the hard, lignified stone (or pit) is derived from the ovary wall of the flower.
Thus, the correct answer is option B.