Which set of rivers given below together forms the world's largest delta before their water flows into the respective seas?

The Ganges-Brahmaputra Delta (also known as the Sundarbans Delta) is the world's largest river delta, formed by the confluence of the Ganges and Brahmaputra rivers. It covers approximately 105,000 square kilometers and spans across Bangladesh and India. The Seine-Rhine forms a smaller European delta, the Danube flows into the Black Sea, and while the Nile forms a large delta, it is formed by a single river, not a pair.