In which situation would hydroponics be most useful for sustainable farming?

a mountainous area facing erosion
a desert area with limited rainfall
a tropical area facing deforestation
a temperate area with too much direct sunlight

Hydroponics would be most useful for sustainable farming in a desert area with limited rainfall. In hydroponics, plants are grown in water instead of soil, which means that they require less water compared to traditional farming. By using hydroponics in a desert area with limited rainfall, farmers can conserve water resources and still grow crops efficiently. Additionally, hydroponics can be used to efficiently grow crops in areas with poor soil quality, which is often a challenge in desert areas.