Final answer:
If a student has used the full balance of Guest Meals for the semester, the guest has the option to pay using their own money or use their own debit or credit card to cover the cost of the meal.
Step-by-step explanation:
When a student has used the full balance of Guest Meals for the semester, the guest typically has a few options. One option is for the guest to pay using their own money to cover the cost of the meal. Another option is for the guest to use their own pre-loaded debit card or credit card to pay for the meal. Lastly, the guest can choose to not eat in the campus restaurant if they are unable or unwilling to pay for their meal.