Answer:
B.two four-year terms
Step-by-step explanation:
The 22nd Amendment was approved in 1947 and ratified in 1951 and it established that a president that has been elected for 2 terms can't be elected anymore and also, it stated that no one can act as a president for more than two years in a term where another person was elected. This Amendent was made because at the time there were some concerns because there was no limit in the number of terms a president could serve and Franklin D. Roosevelt was elected for a fourth term.