Arrange the following environmental and cultural milestones of the Indian subcontinent in chronological order (from earliest to latest): 1. Peak of the Mature Harappan urban phase (c. 2600–2000 BCE). 2. Onset of the Megalayan Age aridity (c. 2200 BCE). 3. Decline of the Chalcolithic Jorwe culture (c. 1000 BCE). 4. Peak of the Painted Grey Ware (PGW) culture (c. 800–600 BCE).

Options:

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

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