Which set of two river given below together form the world's largest delta?

The Ganges and the Brahmpautra together form the world's largest delta. The delta is shared by both India and Bangladesh. It has an area of more than 105,000 sq. km. and is one of the most fertile regions of the world. The river is drained by both the Ganges and Brahmaputra, alongwith their tributaries and distributaries.