Acme Co. offers to buy 1,000 widgets from Widget World Co. Its written offer states: "We're placing an order for 1,000 widgets at $15 per widget, to be delivered by July 15, 2018. Payment due within 90 days of delivery." The offer has no other provisions. Widget World sends a written acknowledgment, stating: "We thank you for your order of 1000 widgets at $15 per widget, delivery by July 15, 2018. Payment due within 75 days of delivery. Buyer to pay shipping costs." Acme does not object to anything in Widget World's acknowledgment. Both parties are merchants. Which of the following best describes this situation? O A. A contract exists, but the different terms cancel each other out, and the additional term is not part of the contract no matter what. B. No contract exists because the differing payment dates must be resolved first. C. A contract exists. The differing payment dates cancel each other out. The additional term probably becomes part of the contract. OD. No contract exists. The purported acceptance contains additional terms, so it is a counteroffer, which Acme never explicitly accepted