The correct option is A Mithankot in Pakistan.
Jhelum and Ravi join Chenab, Beas joins Sutlej, and then Sutlej and Chenab join to form Panjnad 10 miles north of Uch Sharif in Muzaffar Garh district. The combined stream runs southwest for approximately 45 miles and joins the Indus River at Mithankot. The Indus continues and then drains into the Arabian Sea.