阅读下列短文,从各题所给的A、B、C和D项中选出最佳选项。
Once upon a time, in a deep forest lived a hard-working and kind-hearted squirrel named Sammy. Sammy was known for his kind and helpful nature. He was always ready to give a hand to anyone in need.
One sunny morning, Sammy was busy collecting nuts for the winter. Suddenly, he heard a strange noise coming from a nearby bush. Hoping to find out what was happening, he got near the bush and looked inside. There, he found a little bird with a broken wing, struggling to fly.
Sammy felt sorry for the bird and quickly chose to help. He carefully carried the bird back to his comfortable tree hole and tried to cure its wing with leaves and soft grass. Day after day, Sammy gave the bird food and cared for it until its wing got better. As the weeks passed, the bird's wing grew stronger, and it was finally able to fly again. The bird thanked Sammy cheerfully and promised to help him in return whenever he needed it.
Not long after, a terrible storm attacked the forest, and Sammy's tree hole was blocked by fallen branches. Sammy was caught and he didn't know what to do. Just then, the bird flew by and saw Sammy's predicament. It quickly flew to the nearby animals and asked for help.
It took the animals quite a long time to, together, clear the branches and free Sammy from the hole. Sammy felt so thankful and found that his kindness had come back to him in the most surprising way.
From that day on, Sammy has continued to help others, and the forest animals have learned the value of kindness and helping each other. They live happily, knowing that together, they can overcome any challenge.