The correct answer is C. Exocarp
Step-by-step explanation:
A fruit is a structure that is formed in plants and that contains the seed of these, examples of fruits include banana, watermelon, oranges, grapes, etc. In terms of structure, according to biology fruits include an endocarp that is the innermost structure and which in some cases contains the seed as it occurs in peaches, the mesocarp that is the flesh of the skin and usually the one that we eat and the exocarp that is the outermost layer and in most cases is a tough skin as in the case of oranges or bananas. According to this, the one that is the outermost covering of the fruit is the exocarp.