Concept:The series follows a repeated multiplication pattern.Explanation:Multiply alternately by 2, 3, and 5.Start with 27×2=54, but the series has 59.Check the rest: 54×3=162.162×5=810.810×2=1620.1620×3=4860.4860×5=24300.So, only 59 does not fit the pattern.Answer:The odd term is 59, which should be replaced by 54.Correct option: D.