A retailer opened a baseball card store. The shop was very busy on opening day, so the retailer got a clerk from the store next door to help out. A boy came in and asked to see an Ernie Banks rookie card. It was in a plastic case with an adhesive dot that said, “1200.” The boy asked the clerk, who knew nothing about baseball cards, if it was really worth $12.00. He responded, “I guess so.” The boy bought it for $12.00. The true price intended by the retailer was $1,200. Can the retailer rescind the contract? Why?