What is the term for a facility that stores and allows retrieve of information on a specific topic?

The correct answer is "repository." A repository is a structured storage facility that holds and organizes information, allowing for easy retrieval on specific topics. Repositories are designed to manage different types of data, documents, or knowledge effectively, making them essential in various fields including project management, research, and data governance.

While "database" also suggests a structured storage system for data, it typically refers to a collection of information that is systematically organized and managed by software designed for data retrieval and manipulation. The term "knowledge center" can imply a broader concept of an organization or entity that develops and disseminates knowledge, rather than just a focused storage facility. "Information archive" suggests a storage solution for historical data but does not necessarily convey the organized and accessible nature of a repository specifically tailored for information retrieval and usage.

Overall, a repository clearly defines a space dedicated to the storage, organization, and retrieval of information, aligning closely with the characteristics sought in the question.