Four pairs of numbers have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.

52 - 49 32 - 26 72 - 81 35 - 64

32 - 26

Option 1: (5 + 2) = 7 ⇒ 72 = 49 Option 2: (3 + 2) = 5 ⇒ 52 ≠ 26 Option 3: (7 + 2) = 9 ⇒ 92 = 81 Option 4: (3 + 5) = 8 ⇒ 82 = 64