(13 - 21) , (19 - 27) , (15 - 23) , (16 - 24) - Choose odd Number Pair / Group - Classification

Choose or find odd number pair

(13 - 21) , (19 - 27) , (15 - 23) , (16 - 24)

A. 13 - 21

B. 19 - 27

C. 15 - 23

D. 16 - 24

Answer: D . 16 - 24

Justification: All other pairs consist of odd numbers only.