Answer: Option C
Explanation: The right tool most useful for UWGT would be customer relationship management .
Customer relationship management is an approach that would help entity to build a behavior for interacting with potential and current customers. In CRM approach the entity analyze past data to build healthy relations with customers.
In this case UWGT can use CRM by just analyzing the past data by using this approach the organisation does not even need to share the data with donors and at the same time they can boost their relations with them.