Carrie and Peter Enter into a Contract in Which Carrie

Multiple Choice

Carrie and Peter enter into a contract in which Carrie agrees to wash Peter's car as long as Peter tutors Carrie's son in math during the entire time Carrie is washing the car. This is an example of which type of conditional contract?

A) Condition precedent
B) Condition subsequent
C) Condition concurrent
D) Implied condition
E) The contract is not conditional.