Seller offers to sell Buyer his ticket to a popular music festival for $200. Buyer says to Seller: "I plan to keep your offer under advisement, but while I am thinking about it, would you take $125?" Seller doesn't answer, but Buyer then says, "OK, I'll take it for $200." No further conversation occurred between Buyer and Seller. Is there a contract between Buyer and Seller?
(A) No, because Buyer made a counteroffer which terminated his power of acceptance.
(B) No, because the power of acceptance terminated at the end of the $125 conversation.
(C) No, because Buyer has made an offer to purchase the ticket for $200, which Seller has not yet accepted.
(D) Yes, because Buyer validly accepted the offer to buy the ticket for $200.