Option c is the correct answer. Firuz Shah Tughluq, the Sultan of Delhi, is renowned for constructing the most expansive canal network in India. Firuz Shah Tughluq's dedication to enhancing the empire's foundational structures led to the creation of an extensive canal network, earning him the title of the father of India's irrigation system. He built five significant canals collectively known as Nahr-i-Firuz Shahi, or the Firuz Shahi Canal, promoting agricultural growth and cultivation of crops. The first was the Sutlej to Ghanghar. The second carried water from Yamuna to Hissar. Its length was one hundred fifty miles. The Third started from the neighborhood of Mahanadi and Sirmaur hills and connected it with Hansi. The fourth ran from Ghanghar to Firozabad. The Fifth carried the water from Yamuna to Firozabad.