Final answer:
Kristi would use a Data management program to organize caterers' contact information, which is designed for efficient handling and organization of large amounts of data.
Step-by-step explanation:
Kristi, an event planner, would most likely use a Data management program to store caterers' names and contact information in an organized manner. These programs are designed to handle numerous entries and allow for easy sorting, searching, and updating information. A data management program is typically tailored for such tasks, as it allows users to create databases and manage large amounts of data efficiently, providing features like tables, forms, and reports to better organize contact information.