In each of the following questions, a specific rearrangement pattern is applied to the first word to form the second. Identify the same pattern and apply it to the third word to determine the correct answer from the given alternatives.
AROUND : RAUODN :: GROUND : ?

The correct option is RGUODN.

To solve this letter rearrangement analogy, let us examine the relationship and transformation applied to the letters of the first word, AROUND, to form the second word, RAUODN.

Let us write down the positions of each letter in the word AROUND (numbered 1 through 6):

1 = A
2 = R
3 = O
4 = U
5 = N
6 = D

Now, let us compare this to the second word, RAUODN:

Position 1: R (was position 2)
Position 2: A (was position 1)
Position 3: U (was position 4)
Position 4: O (was position 3)
Position 5: D (was position 6)
Position 6: N (was position 5)

From this, we observe that the letters are swapped in adjacent pairs:

- The 1st and 2nd letters swap places: A R ⇒ R A
- The 3rd and 4th letters swap places: O U ⇒ U O
- The 5th and 6th letters swap places: N D ⇒ D N

Now, applying this identical pairwise swapping pattern to the third word, GROUND:

- Swap the 1st and 2nd letters (G R): R G
- Swap the 3rd and 4th letters (O U): U O
- Swap the 5th and 6th letters (N D): D N

Combining these swapped pairs gives the result: RGUODN.