Correct Answer: EXPORT

Solution : Given:
EXORBITANT

Now, let's compare all the option words with the word EXORBITANT –
First option: BITTER; All the letters of the word BITTER are present in the word EXORBITANT.
Second option: EXPORT; All the letters of the word EXPORT are not present in the word EXORBITANT. P is not present in the word EXORBITANT.
Third option: EXNORA; All the letters of the word EXNORA are present in the word EXORBITANT.
Fourth option: EXTANT; All the letters of the word EXTANT are present in the word EXORBITANT.

Therefore, EXPORT cannot be formed from the word EXORBITANT. Hence, the second option is correct.