Final answer:
The Email Enrollment link is generally used only one time to maintain security. After its initial use for account creation, the link becomes inactive to prevent unauthorized use. Therefore the statement is true.
Step-by-step explanation:
The statement 'The Email Enrollment link can only be used one time' is typically true. In many systems that utilize email enrollment links, these links are designed to maintain security and integrity of the enrollment process. The Email Enrollment link is generally used only one time to maintain security. After its initial use for account creation, the link becomes inactive to prevent unauthorized use.
Once the link is used for creating an account or completing a registration, it becomes inactive to prevent unauthorized use or duplicates. It's similar to a voucher code that loses its validity once redeemed. However, specifics can vary by system, so it is always best to refer to the particular instructions or terms of service provided by the system you are using.