Which of the following fishing gears can be used for total harvesting of ponds?

None of the listed fishing gears can be used for total harvesting of ponds. - Hook and line: It involves catching fish one by one, and it's not a practical method for total harvesting of ponds, which could contain a large number of fish. - Harpoon: It's a tool used for catching large fish in open waters, and it's not suitable for use in ponds. - Basket trap: It's a passive fishing gear that captures fish as they swim into the trap. While it can be used in ponds, it is not a practical method for total harvesting of ponds since it only captures a small portion of the fish population at any given time. - Dragnet: It is a fishing gear used for capturing fish in large quantities. It can be used for total harvesting of ponds by enclosing the pond with a net and then pulling the net to capture all the fish.