Craig goes into a supermarket to do some shopping. While doing so he sees that some imported chocolate biscuits are being sold for the ridiculous price of R 4.70 instead of the usual R 47.00. He takes two boxes but while shopping, opens and eats one of them. At the till the teller rings up the chocolates at R 47.00 per box.

Which of the following statements is the most correct?

a. Craig only has to pay R 4.70 for both boxes as this is the advertised price.

b. Craig has to pay R 4.70 for the box he has eaten as this is the price he thought they were when he ate them, and R 47.00 for the other box at the till.

c. Craig only has to pay R4.70 for each box as he is merely accepting the offer to sell at that price, made by the shop.

d. Craig has to pay R47.00 for each box as he is making the offer at the till and the seller doesn't have to sell at the advertised price.