Peter is a data analyst for a food distribution chain. He is often tasked withproducing reports that summarize productivity for every region in the nation. He uses data from each regions database and pools the data centrally so it can be mined. What type of system does Peter use to hold this information?

A.
Data warehouse

B.
Inference

C.
Concurrency tools

D.
Artificial intelligence

Explanation:
A data warehouse is a database that combines data from severaldatabases for the purpose of analysis. Data warehouses are used to mine data,identify patterns and relationships between data elements, and create reports toillustrate these findings.