How many such letters are there in the word DECLARATION each of which is as far away from the beginning of the word as in English alphabet ?

DECLARATION
Here we are looking for the distance of the word. For example C is at third position in english alphabets so if it at third position in the given word also, then it meets our requirement, else it does not.
So checking for each letter in the given word we see that D and E do not meet the requirement as they are occupying first and second position whereas their original positions are 4 and 5. Checking in a similar manner, we can see that following words meet our requirement:
C,I
So there are only two words whose position in DECLARATION is same as their position in original english alphabets. Thus the correct answer is option 2.