Explanation:

Let's find how many such pairs of letters match the condition in the word "ABSORB".

- Consider each letter and find its position in the English alphabet.

- A (1), B (2), S (19), O (15), R (18), B (2).

- Check letter pairs with the same number of letters between them as in the alphabet with the same condition forward and backward.

1. A to B: 1 letter apart, in both word and alphabet.

2. B to O: No match.

3. B to R: No match.

4. S to O: No match.

5. R to B: No match.

- Only one pair (A, B) matches the condition.

- Correct option: 2 - One

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