The correct option is A Epicarp
Epicarp (from Greek: epi-, "on" or "upon" + -carp, "fruit") is a botanical term for the outermost layer of the pericarp (or fruit). The epicarp forms the tough outer skin of the fruit if there is one. The epicarp is sometimes called the exocarp. The endocarp is the outer layer. It usually develops into the skin of the fruit.