A 12-year-old child who has cystic fibrosis plans to play baseball in the summer. A nurse would recommend that the child eat which of the following snack items during games?

• 一个患有囊性纤维化的12岁儿童计划在夏天打篮球。护士会建议这名儿童在运动过程中吃下列哪种零食?