Concept:A paragraph must tell a story in a logical order. Here, Odette drops a flower, the singer reacts, then she prays and feels happy.
Explanation:S1 says Odette looked out of the window. The next natural action is sentence C: she lets a flower slip from her hand.
Sentence A follows: the flower falls near the singer, who kisses it and looks back.
After the singer disappears, sentence D occurs: Odette goes to pray.
Sentence B comes last: she gives thanks and feels happy, leading to S2 (she dreams).
Thus the correct order is C, A, D, B.
Answer:Option A. CADB