Miro, the owner of a supermarket, contracted with Market Supply Company for one complete checkout counter, including a cash register. After the counter was installed, but before the cash register was delivered, Market Supply Company demanded payment for the checkout counter. Miro refused to pay, claiming that he had contracted for a complete checkout counter, including the cash register, and he would pay when the cash register was installed. a. Was this a sales contract? b. Was this a divisible contract? c. Was this an entire contract? d. Does Market Supply have grounds for suit to collect for the portion of the order that was delivered?