The correct option is B Muhammad-bin-Tughlaq
Muhammad bin Tughluq was the Sultan of Delhi from 1325 to 1351. He conquered greater part of south India and annexed it to the Delhi Sultanate. During his reign, he captured Kondhana or Singhara from Nag Nayak. Also, he was the first sultan who attempted for the administrative and cultural unity of the north and south India.