Mr. Jones went into a supermarket where he saw a new kind of toothpaste on a shelf, ticketed at $2.69.He decided to try it, so he took it to the checkout and placed it on the moving counter. The staff member at the checkout rang up the sale,took Mr. Jones money, put the toothpaste in a bag, and handed it with the receipt and the change to Mr. Jones. A contract was formed when:

A.The supermarket employee rang in the sale and took Mr. Jones money

B.The supermarket employee put the toothpaste on display for Mr. Jones to see

C.Mr. Jones paid for the toothpaste

D.Mr. Jones picked up the toothpaste