Which characteristic makes legumes a good food source for food-insecure populations? a) they are a source of starchy carbohydrates b) they are inexpensive to cultivate c) they are a source of fermented sugars d) they are bred over thousands of years

B) They are inexpensive to cultivate.

Legumes are crops, which includes foods like beans and lentils. They are good source of protein and fibers. Legumes are type of vegetable, whose seeds grows within a pod. Legumes come in different color, texture and flavor. Legumes can become part of multiple cuisines. They are inexpensive, and are affordable by people of all economic groups. The seeds of all leguminous plants are easily available, and are cheap. Some of the species undergoes a symbiotic relationship with nitrogen fixing bacteria in the soil, to obtain nitrogenous compounds required for growth. Therefore, such crops prevents the expense of fertilizers. Hence, they are inexpensive to cultivate.

if you're asking what comes out, it's steam.