Let's match each heritage charter with its corresponding focus area from Group II:
- Washington Charter (P): This charter focuses on the conservation of historic gardens, which is directly related to Option 5 in Group II. This charter emphasizes the importance of preserving the historical and aesthetic value of gardens, and the specific focus is on the landscape elements within the heritage sites. Thus, P = 5.
- Florence Charter (Q): The Florence Charter deals with the conservation of places of cultural significance, such as historic buildings and sites. This matches Option 2 in Group II, which emphasizes the cultural and historic value of a place. Hence, Q = 1.
- Venice Charter (R): This charter primarily focuses on the conservation and restoration of monuments and sites, which is the correct match with Option 4 in Group II. The Venice Charter deals with the proper methods of conserving and restoring historic monuments and sites. Therefore, R = 4.
- Burra Charter (S): The Burra Charter is known for its focus on the conservation of historic towns, particularly in terms of maintaining their character and cultural heritage. This corresponds to Option 5 in Group II, which focuses on the conservation of historic towns. Therefore, S = 2.
Thus, the correct matching is P = 5, Q = 1, R = 4, S = 2, which matches Option (C).