Choose the correct statement.

Julius von Sachs, a prominent British botanist, demonstrated for the first time, that plants could be grown to maturity in a defined nutrient solution in the absence of soil

The technique of growing plants by supplying nutrient ladden moist air to the roots of plants is called hydroponics.

Hydroponics has been successfully employed as a technique for commercial cultivation of vegetables such as seedless cucumber, lettuce and tomato.

In hydroponics, the nutrient solution must be poorly aerated.