G. Whiz Sports Shop published this advertisement in the local new "Congratulations to the winners of the Tour de France! Now YOU TOO can be a champ! Get an 18-speed Blue Lightning bicycle for only $2,295-marked down from $2,795, the manufacturer's suggested retail price. What a bargain! Come and get it!" Baxter visited the discount store the following day and said, "I'll take one of the Blue Lightning bikes." The clerk replied, "Sorry, we had only ten bikes in stock and they've all been sold." Was the advertisement an offer? Why or why not?​