Let us analyze and match each element in Group I with its corresponding description in Group II:
- P (Cornice): The cornice is the decorative molding at the top of a building or structure, often extending over the edge of the roof. Cornices can be found at the top of columns or at the roofline of a building. This matches Option 5 in Group II, Frieze, which typically refers to decorative elements placed just below the cornice. Therefore, P = 5.
- Q (Stylobate): The stylobate is the top step or base of a temple or structure that supports columns. It is the foundation of the structure that carries the weight of the columns. This corresponds to Option 1 in Group II, which describes the Cornice, and Q = 1.
- R (Stereobate): The stereobate is the substructure or solid base supporting the entire building or temple, typically the lower portion of the foundation. It is described in Option 3 in Group II. Therefore, R = 2.
- S (Abacus): The abacus is a flat slab or the uppermost part of a column, just below the capital. It helps to provide stability to the capital above it. This matches Option 4 in Group II, Abacus, making S = 4.
Thus, the correct matching is P = 5, Q = 1, R = 2, S = 4, corresponding to Option (D).