Final answer:
The correct response to the question is a retest fee. Possible fees related to exam retakes include the original fee, a retest fee, a late fee, or double the initial fee, but the most common is the retest fee.
Step-by-step explanation:
If you fail an exam, you are often required to pay a retest fee to retake the exam each time. This fee can vary depending on the institution or the type of test. It is not necessarily the original fee, nor is it typically double the initial fee or a late fee unless specified. The purpose of the retest fee is to cover the expenses associated with administering the exam again.
Students need to prepare adequately for exams to avoid the additional costs of retaking them. Moreover, some institutions may limit the number of times you can retake an exam or may increase the fee after a certain number of attempts.