Alyssa Meade is the database administrator for Realtree​ Outdoors, Inc. She is updating the data warehouse by using zip codes to add demographic data from the U.S. Census Bureau to the​ company's customer records before loading them into the data warehouse. What is this process​ called? A. ​Data-mining process B. Transformation process C. Assimilation process D. Extraction process E. Normalization process