Select the option in which the numbers are related in the same way as are the numbers of the following set. (21, 13, 17)

(11, 21, 140) (25, 35, 38) (22, 57, 81) (32, 46, 39)

(32, 46, 39)

(21, 13, 17) The logic followed here is : (Ist number + IInd number) ÷ 2 = IIIrd number AS (21 + 13 )÷ 2 34 ÷ 2 = 17 Similarly (32, 46, 39) (32 + 46)÷ 2 78 ÷ 2 = 39