What is the maximum number of years a person can serve as president, assuming they succeeded to the office mid-term and then won two full elections?

• A 8 years
• B 12 years
• C 9 years
• D 10 years ✓

Under the 22nd Amendment, a vice president who serves less than two years of a predecessor's term may still be elected twice, for a theoretical maximum of just under 10 years.