Concept:Add 2 to the given number, then cube the result.Explanation:First pair: 9 → 9 + 2 = 11, and 113=1331.Second pair: 13 → 13 + 2 = 15, and 153=3375.For the fifth number 19: 19 + 2 = 21, and 213=9261.Thus the missing number is 9261.Answer:Option A: 9261