Arrange the following administrative developments and reforms under Ashoka in chronological order (from earliest to latest): 1. Institution of the system of quinquennial tours (Anusamyana) by Rajukas and Pradesikas. 2. Appointment of Dhamma Mahamattas to look after the spiritual and material welfare of the subjects. 3. Granting of independent judicial powers to the Rajukas in matters of law and justice. 4. Ashoka's pilgrimage to Sambodhi (Bodh Gaya), marking the beginning of his Dhamma-yatas. Select the correct answer using the code given below:

Options:

• A: 1 - 4 - 2 - 3
• B: 4 - 2 - 1 - 3
• C: 4 - 1 - 3 - 2
• D: 4 - 1 - 2 - 3

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