A Contract Calls for a Farmer to Send Apples Growing

A contract calls for a farmer to send apples growing at his farm to the fruit market every Monday and he promptly sends them fresh stock of apples every Monday as per the contract.If the fruit market does not pay cash but rather sends a check the following week then:

A) the farmer can object if he may want to rely on the late payment for canceling the contract,but can do this only after six months of the contract period.
B) the farmer cannot object under any circumstances.
C) the farmer must object if he may want to rely on the late payment as grounds for later canceling the contract.
D) the farmer can object only if he has not been paid for the apples he delivered.