Monica had a spotless medical record until she was rushed to the emergency room for a gallbladder attack in December. Her major medical provider allowed her to apply her gallbladder-related expenses to the next year so that she could apply them to the new year's deductible. What provision allowed her to do this?
(Choose from the following options)
1. Carryover
2. Deductible Transfer
3. Deductible Extension
4. Common accident
