The correct answer is: a) Carp cultivation.
Carp is a freshwater fish that is widely cultivated in Asia, Europe, and North America. It is a hardy fish that can tolerate a wide range of water conditions, and it is a good source of protein and other nutrients. Carp is also a popular food fish, and it is used in a variety of dishes.
Trout is a freshwater fish that is native to the Northern Hemisphere. It is a popular game fish, and it is also cultivated for food. Trout is a cold-water fish, and it is typically raised in ponds or streams that are well-oxygenated.
Shrimp is a saltwater crustacean that is widely cultivated in Asia, South America, and the United States. It is a popular food fish, and it is used in a variety of dishes. Shrimp is a high-value commodity, and it is a major export for many countries.
Ornamental fish are fish that are kept for their beauty or rarity. They are typically kept in aquariums, and they can be a popular hobby. Ornamental fish can be a variety of species, and they can be found in a variety of colors and patterns.
In Meghalaya, aquaculture is mainly focused on carp cultivation. Carp is a hardy fish that can tolerate the cold water conditions of the state, and it is a good source of protein and other nutrients. Carp is also a popular food fish, and it is used in a variety of dishes.