Henry Attends His Local Supermarket with the Intention of Purchasing

Henry attends his local supermarket with the intention of purchasing a kilogram of ripe mangoes.The contract between Henry and the supermarket proprietor is formed when:

A) Henry selects the mangoes of his choice and places them in his shopping basket.
B) Henry presents the bag of mangoes to the checkout operator.
C) the checkout operator accepts payment from Henry.
D) Henry eats the mangoes.