Final answer:
An unregistered account typically cannot redeem rewards because registration is necessary for tracking and verification purposes in a rewards program.
Step-by-step explanation:
The statement 'An unregistered account cannot redeem any rewards' is generally true. Most rewards programs require users to have a registered account to accumulate points or rewards. This is because the system needs to identify and verify the user in order to provide and track their specific rewards. Without registration, it becomes challenging for the provider to assign rewards to the correct individual, combat fraud, and ensure that the loyalty program is being used as intended.