Rearrange the jumbled up letters in their natural sequence and find the odd one out.
1). ORETORS
2). AOPDREL
3). KCAOCEP
4). HFKVDH
After rearranging the letters we get the following words,
A) ORETORS → ROOSTER
B) AOPDREL → LEOPARD
C) KCAOCEP → PEACOCK
D) HFKVDH → No word can be formed.
Thus word HFKVDH is the odd one.