Select the set in which the numbers are related in the same way as are the numbers of the given sets.
(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/deleting/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.)
16, 4, 20
28, 7, 35

16, 4, 20

28, 7, 35

Logic: ​First number + Second number = Third number

16 + 4 = 20

28 + 7 = 35​​

Apply same logic to the options:

Option A) (52, 13, 65) → 52 + 13 = 65  (Follow)

Option B) (52, 13, 60) → 52 + 13 = 65 ≠ 60 

Option C) (50, 13, 65) → 50 + 13 = 63 ≠ 65 

Option D) (50, 13, 60) → 50 + 13 = 63 ≠ 60 

Thus, the correct option is: (a)