The correct answer is: A. Maharaja Ranbir Singh.
Maharaja Ranbir Singh was the Maharaja of Jammu and Kashmir from 1857 to 1885. He was the son of Maharaja Gulab Singh and succeeded him to the throne. Ranbir Singh was a progressive ruler who oversaw a period of great economic and social development in Jammu and Kashmir. He was also a patron of the arts and literature.
The Ranbir canal and Pratap canal are two major irrigation canals in Jammu and Kashmir. The Ranbir canal was built in 1872 and is the largest canal in the state. It irrigates over 100,000 hectares of land. The Pratap canal was built in 1885 and irrigates over 50,000 hectares of land.
Maharaja Ranbir Singh was a visionary ruler who made significant contributions to the development of Jammu and Kashmir. The Ranbir canal and Pratap canal are two of his most enduring legacies.
Option B: Maharaja Pratap Singh was the Maharaja of Jammu and Kashmir from 1885 to 1925. He was the son of Maharaja Ranbir Singh. Pratap Singh was a less progressive ruler than his father and his reign was marked by political instability and economic decline.
Option C: Maharaja Gulab Singh was the founder of the Dogra dynasty and the first Maharaja of Jammu and Kashmir. He was a powerful and ruthless ruler who conquered much of the territory that now comprises Jammu and Kashmir. Gulab Singh was not interested in development and his reign was marked by political repression and economic stagnation.
Option D: None of the above is incorrect.