The Chambal, Gomti, and Yamuna are all major tributaries of the Ganges River, making options A, B, and C correct. The Chambal joins the Yamuna (which then joins the Ganges), while the Gomti is a direct tributary of the Ganges. The Mandovi (option D) is a river in Goa that flows into the Arabian Sea, unrelated to the Ganges system.