Which code segment should you use?

You are developing an ASP.NET MVC application that uses forms authentication against an Oracle
database.
You need to authenticate the users.
Which code segment should you use?

A.
Option A

B.
Option B

C.
Option C

D.
Option D

Explanation:
When implementing a custom membership provider, you are required to inherit the
MembershipProvider abstract class.
There are two primary reasons for creating a custom membership provider.
You need to store membership information in a data source that is not supported by the
membership providers included with the .NET Framework, such as a FoxPro database, an Oracle
database, or other data source.
You need to manage membership information using a database schema that is different from the
database schema used by the providers that ship with the .NET Framework. A common example of
this would be membership data that already exists in a SQL Server database for a company or Web
site.

MembershipProvider Class
https://msdn.microsoft.com/en‐us/library/system.web.security.membershipprovider(v=vs.110).aspx