The correct option is
D All of the above
(A)Hydroponics is also called as a floating-raft system in which farming is done without using soil on a nutrient-rich solution. For Example, Mint, Tomato, Potato, Lettuce, Basil etc.
(B)Aeroponics is an indoor gardening method in which plants are grown in a mist environment. Tomato, Pepper, Cucumber, e.t.c are some of the examples
of Aeroponics.
(C)Green Roof Is a system of planting trees covered with vegetation and growing medium. Small grasses, Herbs, Flowering Plants, e.t.c are some of the examples of the Green roof.
So, the correct option is 'All of the above'.