In a Fee Simple Determinable Estate Situation, If the Condition

In a fee simple determinable estate situation, if the condition is not met, the person with the possibility of reverter:

A) automatically regains fee simple title.
B) must go to court to regain the fee simple title.
C) must allow the person who owns the fee simple, after notice, an opportunity to meet the condition.
D) loses all claims to fee simple title.