Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?

A. IX B. XXIII
C. XV D. XVII

• D. XVII
  
  There will be 2 series.
  
  1st : V, X1, - (Increasing by 6 in roman numbers. i.e, V(5), XI(11), XVII(17))
  2nd : VIII,XIV,XX (Increasing by 6 in roman numbers.)
  
  Final :V,VIII,XI,XIV,XVII,XX
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• Option D
  
  
  
  
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• Answer: D
  
  Explanation:
  This is a simple addition series; each number is 3 more than the previous number.
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