Explanation:

A. Information: Information is processed, organized, and structured data, providing context and meaning. It is not a collection of unprocessed items.\nB. Data: Data refers to raw, unorganized facts, figures, or items that require processing to become meaningful. This precisely defines a collection of unprocessed items.\nC. Reports: Reports are highly structured and processed presentations of information, summarizing findings or analyses. They are the result of processing, not unprocessed items.\nD. Memory: Memory is a storage medium for data and instructions, whether processed or unprocessed, but it is not the definition of a collection of unprocessed items itself.