Four years ago, when Ted was sixty years old, he retired. He had worked in a restaurant for forty-three years. He left and returned to his home village. There he bought a small piece of farm and planted a lot of apple trees in it. He takes good care of them and this year there are plenty of apples in the trees. The old man is very happy.

But these days the old man has been worried. Nearly every night his garden is broken into and quite a few apples have been lost. So he decided to do his best to catch the thief himself. Last night he sat in a tree and carefully watched who would come and pick the apples. Later at night. Ted was so tired that he went to sleep. Suddenly some noise woke him up. The noise came from a big tree. He went there quietly and saw a boy standing under the tree with a bag full of apples. At once he recognized it was Tom who lives just next to him.

"How can you do that, Tom?" the old man became angry and shouted. "I'll tell your father about it!"

But the boy wasn't afraid about it. He looked up and called out, "Have you heard that yet, Dad?"

When Ted was ______, he began to work in the restaurant.

A.four

B.seventeen

C.forty-three

D.sixty