Each vowel in the word INCURABLE is changed to the letter following it in the English alphabetical order and each consonant is changed to the letter preceding it in the English alphabetical order. How many vowels will be there in the new word thus formed?

Word INCURABLE

The pattern followed here 

Let's go through each letter of the word "INCURABLE" and apply the given transformations:

Now, the new word formed is: JMBVQBAKF

count the number of vowels in this new word

there is 1 vowel (A) in the new word.

Thus, correct option is (a).

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