Match arch illustrations P–S with 1 Venetian, 2 ogee, 3 Moorish multifoil, 4 corbelled, 5 shouldered arch. The source page mislabels this question 47; its official sequence number is 57.
P has multiple foils (3), Q is the Venetian composition (1), R has reverse-curved ogee sides (2), and S has shoulders beneath the lintel-like upper opening (5). Thus B:3, 1, 2, 5. The source’s printed numbering error must not overwrite the official question sequence.
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