Which of the following statements are correct? 1. Under the Cornwallis System, the districts were divided into thanas or police jurisdictions of 20-30 miles square. 2. Each of them was placed under an officer of government, under the denomination of daroga. 3. The daroga system was introduced in Madras in 1812. 4. The daroga was nominated by the district magistrate. Select the correct answer using the code given below: