What should you do?

You administer a single server that contains a Microsoft SQL Server 2014 default instance. You plan to install a new application that requires the deployment of a database on the server. The application login requires sysadmin permissions.

You need to ensure that the application login is unable to access other production databases.

What should you do?
A . Use the SQL Server default instance and configure an affinity mask.
B . Install a new named SQL Server instance on the server.
C . Use the SQL Server default instance and enable Contained Databases.
D . Install a new default SQL Server instance on the server.

Answer: B

Explanation:

References: https://docs.microsoft.com/en-us/sql/sql-server/install/work-with-multiple-versions-and-instances-of-sql-server