Refer to the exhibit. An engineer must check the admin rights of users on a database regularly and prepares the Python script to automate the process. The script connects to the database and runs a query. What is a security issue about the secrets in the code that relates to secret protection?

A. They must be stored in configuration files if there is a possibility of leakage. B. They must be Base64-encoded if stored in the user database. C. They must be encrypted if stored in the user database. D. They must be stored in configuration files if no authentication will be used.