Answer:
A) Bill and John have a contract for the sale of the bike at $375.00
Step-by-step explanation:
John first made an offer to buy the bike at $325 ⇒ Bill responded with a counteroffer increasing the price of the bike ⇒ John accepted Bill's counteroffer ⇒ they have a binding contract.
When parties are bargaining a contract, the process of giving an initial offer and then a counteroffer (or counteroffers) is part of the process of forming a contract. It is a necessary part, since without this bargaining process there is no contract. A contract is formed when one of the parties accepts the other party's offer or subsequent counteroffer.