The correct option is
C Pome because its fleshy part is a pseudocarp formed by a greatly enlarged receptacle
The fruit of apple is pome because its fleshy part is a pseudocarp formed by a greatly enlarged receptacle.
A pome is an accessory fruit composed of one or more carpels surrounded by accessory tissue. The accessory tissue is interpreted by some specialists as an extension of the receptacle and is then referred to as fruit cortex and by others as a fused hypanthium or torus it is the most edible part of this fruit. The carpels of a pome are fused within the core.
Therefore, the correct answer is option C.