In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the _x005F_x000D_

• A. _x005F_x000D_ 21 – 42_x005F_x000D_  _x005F_x000D_
• B. _x005F_x000D_ 23 – 46_x005F_x000D_  _x005F_x000D_
• C. _x005F_x000D_  31 – 62_x005F_x000D_  _x005F_x000D_
• D. _x005F_x000D_ 33 – 69_x005F_x000D_