Answer:
The correct answer is - By supplying the plant with water at a specific location, the roots can be made to grow in a specific direction, seeking water.
Explanation:
Auxin is the plant hormone or chemical substance that helps in the growth and development of plants. It helps in the various physiological process that are essential for the growth and development of plants such as geotropism and phototropism.
Hydrotropism is the movement of the roots of the plants towards or away from the water concentration gradient or moisture. It takes place by supplying water to the plant at specific locations that roots move towards the direction of water.
