Based on the information provided, the first step to minimize the risk of unstructured data should be to A: Identify repositories of unstructured data. Unstructured data can present a significant security risk if not managed properly, so it is important to identify where it is stored and who has access to it. Once the repositories of unstructured data have been identified, additional steps can be taken to protect it, such as implementing strong encryption and user access controls, and purchasing tools to analyze it.