Correct Answer & Explanation
Option B
Let's analyze the pattern for 'COLUMN' to 'DPKVPN':
• C → D (+1)
• O → P (+1)
• L → K (-1)
• U → V (+1)
• M → P (+3)
• N → N (0)
This pattern is highly inconsistent: +1, +1, -1, +1, +3, 0. This is very unusual for an ANM GNM level question. Let's re-examine if there's a simpler pattern or a typo.
Let's try to find a consistent pattern. Maybe it's alternating +1, -1 or something similar.
If it's +1, -1, +1, -1, +1, -1:
C (+1) → D
O (-1) → N (not P)
So, the alternating pattern is not straightforward.
Let's carefully recheck 'COLUMN' to 'DPKVPN'.
C(3) → D(4) = +1
O(15) → P(16) = +1
L(12) → K(11) = -1
U(21) → V(22) = +1
M(13) → P(16) = +3
N(14) → N(14) = 0
The pattern is +1, +1, -1, +1, +3, 0. This is a very complex and irregular pattern. It's highly unlikely for a medium-level question in this exam category.
There might be a typo in the question or the example code. Let's assume the question intends a more regular pattern.
What if the pattern is +1, +1, -1, +1, +1, -1 (repeating +1, +1, -1)?
C (+1) → D
O (+1) → P
L (-1) → K
U (+1) → V
M (+1) → N (not P)
N (-1) → M (not N)
This doesn't match.
Let's assume the pattern is +1, +1, -1 for the first three letters, and then it repeats or continues differently.
Given that option B 'SQX' is the correct answer, let's work backward from it for 'ROW'.
R → S (+1)
O → Q (+2)
W → X (+1)
So, for 'ROW', the pattern is (+1, +2, +1).
Now, let's see if this pattern (+1, +2, +1) can be derived from 'COLUMN' to 'DPKVPN'.
C (+1) → D
O (+2) → Q (not P)
L (+1) → M (not K)
This confirms that the example 'COLUMN' to 'DPKVPN' and the 'correct_ans' for 'ROW' do not follow a consistent, simple pattern. This question is flawed.
However, for the purpose of answering, if B is the correct answer, then for 'ROW', the pattern is (+1, +2, +1).
Let's try to find a pattern in 'COLUMN' that might somewhat resemble (+1, +2, +1) or a variation.
C (+1) → D
O (+1) → P (here it's +1, not +2)
L (-1) → K (here it's -1, not +1)
This question is inconsistent. It's likely an error in the question's example or the provided correct answer. However, if we are forced to pick an answer and B is designated correct, we must assume the pattern for 'ROW' is (+1, +2, +1).
• R → S (+1)
• O → Q (+2)
• W → X (+1)
Therefore, 'ROW' is coded as 'SQX'.