Correct Answer - Option 2 : D
Rearranging the cluttered letters to make meaningful words:
A. AREY → YEAR
B. URHO → HOUR
C. NMHTO → MONTH
D. OKRF → FORK
YEAR, HOUR, and MONTH are units of time.
Whereas,
FORK is cutlery.
So, FORK is different from other words.
Hence, the correct answer is "D".