Which example describes a drupe?

A drupe is a type of fruit that has a single seed encased in a hard endocarp, which is often referred to as the "stone." Examples of drupes typically include fruits like peaches, cherries, and olives. The structure of a drupe features three distinct layers: the outer exocarp, the fleshy mesocarp, and the hard endocarp that surrounds the seed.

In the case of a peach, it distinctly exemplifies a drupe because it has a soft, juicy outer layer and a single stone with a seed inside. The fleshy part of the peach is consumed, while the hard pit in the center is characteristic of drupe fruits.

In contrast, strawberries and blackberries are aggregate fruits, which means they form from multiple ovaries of a single flower, and an apple is a pome, which has a core containing seeds surrounded by fleshy tissue. These differences in fruit structure and formation help clarify why the peach is the correct example of a drupe among the options provided.