The correct answer is option 1 - Thomas Munro. The Ryotwari System was developed by Thomas Munro during the British colonial rule in India. This system was implemented in certain parts of India as a method of revenue collection.

Option 2, Holt Mackenzie, is not the correct answer. Although Mackenzie was an influential British administrator in India during the same time period, he did not develop the Ryotwari System.

Option 3, Edmund Burke, is also not the correct answer. Edmund Burke was a British political philosopher and statesman, but he was not involved in the development of the Ryotwari System in India.

Option 4, Lord Dalhousie, is not the correct answer either. Lord Dalhousie was a British governor-general of India during the mid-19th century, but he did not introduce the Ryotwari System.

Overall, the Ryotwari System was developed by Thomas Munro, not the other options provided.