Appendix C is a content catalysts, processes, and products (CCPP) toolkit, which provides a quick and easy way to differentiate instruction using a menu-like approach for choosing activities.

• 回答：附录C是一个目录催化剂，流程和产品（CCPP）的工具包，它提供了一个快速又简单的方法去区别指示-使用一种菜单式的途径来选择任务。