Select the set in which the numbers are related in the same way as are the numbers of the following sets:

(7, 11, 72)

(5, 8, 39)

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13-Operations on 13 such as adding / subtracting / multiplying etc, to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)

(4, 7, 33)

(7, 11, 72)

(5, 8, 39)

The logic followed here is :

(IInd number)² - (Ist number)² = IIIrd number

As

11² - 7² = 72

  8² - 5² = 39

Same as in option 1

  7² - 4² = 33