Hydroponics is a method of cultivation of plants without the use of

The correct option is Soil.

Explanation:
Hydroponics is a modern agricultural technique used to grow plants in a nutrient-rich, water-based solution instead of using traditional soil. The word itself is derived from the Greek words hydro (meaning water) and ponos (meaning labor or work).
In a hydroponic system, plant roots are directly suspended in or exposed to a water solution that contains all the essential mineral nutrients required for their growth. Since the nutrients are delivered directly to the roots in a soluble form, the plants do not need soil to anchor themselves or to obtain nutrients.
Other essential elements such as air (for oxygen and carbon dioxide exchange), water (as the medium to carry nutrients), and sunlight (or artificial light to facilitate photosynthesis) remain absolutely critical for the survival and growth of plants in hydroponic systems. Therefore, hydroponics is specifically a method of cultivation of plants without the use of soil.