Concept:The sentences must form a logical sequence where the setting and actions follow in a natural order. The fixed first sentence (S1) describes twilight. The final sentence (S2) is a dialogue. The middle four sentences (A, B, C, D) must connect the scene, the character, her actions, and an interruption.
Explanation:Start with S1: "Twilight was descending..." This sets the time.
Sentence C naturally follows because it introduces Sofia at the window looking at the street. This matches the scene.
Sentence B comes next. It explains why the street (Via Toledo) is dangerous at that hour, adding context to the crowded scene Sofia is watching.
Sentence D is the third. It shows Sofia's emotional reaction — she seems to be looking for someone, flushes, then pales and turns back. This builds suspense.
Sentence A is fourth. A minute later, Lulu bursts in noisily, interrupting the moment. This leads directly into S2's question to Sofia.
The correct order is C, B, D, A, which is option CBDA.
Answer:CBDA (Option B)