A Has Just Hired B as His Employee

Multiple Choice

A has just hired B as his employee.The contract,which is in writing and for a two-year term,contains a provision that states that the first three months of B's employment is a probationary period during which A will determine whether B's employment will continue.At the end of the three-month period,A advises B that B's services are no longer required.In this case

A) A is within his rights because the probationary period is a condition subsequent.
B) A is within his rights because the probationary period is a condition precedent.
C) A is in breach of contract with B because B has performed his end of the bargain.
D) A is in breach of contract when he tells B his services are no longer required.
E) none of the above