Which of the following fruits is an example of a drupe?

A drupe is a type of fruit characterized by a fleshy outer layer, known as the exocarp, a fleshy middle layer called the mesocarp, and a hard inner shell, or endocarp, that contains the seed. Apricots are classic examples of drupes because they display all these features. The outer skin is smooth and fleshy, while the inner layer surrounds a single large seed, making it a quintessential representative of drupes.

In contrast, the other options represent different fruit types. Blueberries are classified as berries, which contain multiple seeds embedded in the flesh. Bananas are also berries, but they possess characteristics that differentiate them from drupes, such as their structure and seed configuration. Strawberries, on the other hand, are aggregate fruits deriving from multiple ovaries of a single flower, leading to their unique structure. The clear definition and structure of a drupe make apricots the correct answer in this context.