​How many such pairs of letters are there in the word LOVABLE (in both forward and backward directions) which have as many letters between them in the word as there are in the English alphabetical order?

​Given: LOVABLE​

Now, let’s check the number of letters between the letters of the given word.

The alphabetical positions of the letters of “LOVABLE” is as follows-

So, AB is the such pair.

(Note- Y to A is not counted because last letter of alphabet is Z) 

Thus, correct option is (d).