What is classified as a legume?

Legumes are a category of plants within the family Fabaceae, which produce seeds in pods. The defining characteristic of legumes is that they bear fruits known as legumes, which are typically dried fruits that develop in a pod. This means that they grow in a structure that opens along two seams to release the seeds contained within.

The correct choice reflects this classification, as a dried fruit housed in a shell or pod aligns perfectly with the definition of legumes. The seeds develop inside the pod, and when mature, the pod splits open to release the seeds. Common examples of legumes include beans, peas, lentils, and chickpeas.

In contrast, the other options do not fit the classification of legumes. Tomatoes, basil, and lettuce are not part of the legume family; tomatoes are fruits from the Solanaceae family, basil is an herb from the Lamiaceae family, and lettuce is a leafy vegetable from the Asteraceae family. Therefore, the only option that correctly defines a legume is the one indicating a dried fruit housed in a shell or pod.