Which pair of numbers is the odd one out?

C. 2, 4

Find the odd number pair from the list below.

A. 21, 27

Choose the odd group of numbers.

D. 12, 14, 16

Select the odd group of number pairs from the list below.

A. (15, 20)

Which of the following pairs of numbers is the odd one out?

C. (4, 6)