阅读下列材料，从A、B、C、D四个选项中选出最佳答案。
D
As the saying goes, “Give a man a fish, and you feed him for a day. Teach a man to fish, and you feed him for a lifetime.” This is the way the charity organization Heifer International (国际小母牛慈善组织) wants to end world hunger.
It began in the 1930s when an American farmer, Dan West, went to Spain to help people in need. He tried to feed the people with milk. But it seemed that there would never be enough milk. It made him think that what they needed was “not a cup, but a cow”.
Dan West returned to America. He worked together with some friends to find ways to end hunger. He believed giving animals and providing training would stop world hunger. With his help, Heifer International was set up.
On Heifer International's website, you will see a list of animals like cows, chickens, pigs and even fish and bees. You can offer help by buying some animals for one certain family. Those animals will have babies get better lives, they will pass on the act of kindness to others. More importantly, you are buying the resources (资源) for programs run by Heifer International to help more families.
The programs also help small-sized farms. As a rule, each farmer must give his animal's first female (雌性) baby to another in need. Heifer International also provides training on animals' health and feeding. And these farmers all agree to teach others what they have learned as another rule.
However, there is still a long way to go. The milk may run out. But if families have their own cows, they can get plenty of milk to feed themselves. The organization wants the farmers to go on working together, helping each other and learning from each other. Maybe hunger can really be stopped.
