To solve this problem, let's analyze the word "EXCLUSIVE" and identify pairs of letters that have as many letters between them as in the alphabet.

First, let's list down the alphabet:
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z

Now, let's examine each pair of letters in the word "EXCLUSIVE" and count the number of letters between them in the alphabet.

1. EX: There are 22 letters between E and X in the alphabet.
2. XE: There are 4 letters between X and E in the alphabet.
3. EL: There is 1 letter between E and L in the alphabet.
4. LU: There are 20 letters between L and U in the alphabet.
5. US: There is 1 letter between U and S in the alphabet.
6. SI: There are 5 letters between S and I in the alphabet.
7. IV: There are 4 letters between I and V in the alphabet.
8. VE: There is 20 letters between V and E in the alphabet.

From the analysis, we can see that there are three pairs of letters in the word "EXCLUSIVE" that have as many letters between them as in the alphabet: EX, LU, and IV.

So, the correct answer is (B) 3.