A 15 year old girl buys an 18 certificate DVD, a packet of sweets and a card for recharging her mobile phone from a local shop. She claims not to have enough money on her to pay for the goods there and then so the shopkeeper, who knows her parents quite well, tells her she can pay later. A week later she has still failed to pay up. Which of these goods are "necessaries"?

Select one:

a.The DVD and the sweets

b.Only the sweets

c.The mobile phone card and the sweets

d.All of them