You have several users with Windows user accounts who are using your new ASP.Net web application to retrieve data from the SQL Server 2000 database. Each user connects to the database using his/her user account. There are now several hundred users, using the data. How can you improve performance of the web application?

a. Use SQL Server authentication.

b.  Use the same connection string for the database connections.

c.  Use Basic authentication.

d.  Stop using the database to retrieve the data.