At 6:30 in early morning, Chen Liang drives his new yellow school bus through villages, taking children to his kindergartens (幼儿园).
Chen and his wife Pang Qiuxiang ran two kindergartens in Shanqian Village and Lanxi Village in Qingdao. Pang works as the head of two kindergartens, and Chen takes many responsibilities (责任), from driving to fixing desks and chairs and buying food. Everything seems common in the kindergartens. But one thing makes the kindergartens unique and well-known to the locals. They are free.
In 2006, when the couple took over the kinder-garten from Chen’s mother, it was not free. At that time, Pang took on the main tasks because Chen was busy operating his hotel on the seaside.
But a small pitiful (令人同情的) action of one child touched Pang deeply. “The parents could choose to pay if they would like their children to have dessert. Some parents could not afford to pay the extra fees so their children couldn’t enjoy dessert. Once I saw a child pick up an empty biscuit package which was left by another child, and eat the crumbs (食品屑) in it. I was astonished by the scene,” Pang said. Later, after a serious discussion, the couple made a decision to begin a tuition-free kindergarten.
So they began the tuition-free kindergarten on October 1, 2010.
根据材料内容选择最佳答案，并将其标号填入题前括号内。
【小题1】 What makes the kindergartens special?