根据短文内容出选择正确答案。
A farmer had a brother in town who was a gardener, and his brother had a garden full of the finest fruit trees. So his skill and his beautiful trees were famous everywhere. One day the farmer went into the town to visit his brother, and was surprised at the trees that grew quite well.
"Look, my brother," said the gardener. "I will give you an apple tree, the best from my garden, and you, and your children, and your children's children will enjoy it."
Then the gardener called his workmen and ordered them to take up the tree and carry it to his brother's farm. They did so, and the next morning the farmer began to wonder where he should plant it.
"If I plant it on the hill," he said to himself, "the wind might catch it and shake down the delicious fruit before it is ripe. If I plant it close to the road, passersby will see it and take away the apples--but if I plant it too near the door of my house, my children may pick the fruit." So, after he had thought the matter over, he planted the tree behind his barn (谷仓).
Time passed, but the tree had no fruit the first year, nor the second-then the farmer called his brother. When the gardener came, the farmer said angrily, "You have cheated me, and given me a useless tree instead of a fruitful one. This is the third year and still it brings out nothing but leaves! "
The gardener laughed and said, "See where the tree was planted, it has no sun or warmth. How could you expect flowers and fruit?"
