You are designing a Windows application that accesses information stored on a SharePoint
2010 intranet site. The application displays employee information in a data grid sourced
from a list on the Human Resources site. To filter and manipulate the employee details list,
the design includes a class to cache the data that is accessed. The class keeps the SPWeb
object open, but only retrieves data that is not already cached. You need to ensure proper
memory utilization and resource management for the application. Which approach should
you recommend?

A.
Implement the class as a fully managed .Net Framework object and explicitly manage the
SPWeb object using the ISPerformanceMonitor interface.

B.
Implement the class as a fully managed .Net Framework object and allow the .NET
Framework garbage collector to automatically manage the SPWeb object disposal.

C.
Implement the class with the IDisposable interface and allow the .NET Framework
garbage collector to automatically manage the SPWeb object disposal.

D.
Implement the class with the IDisposable interface and explicitly dispose of the
SharePoint SPWeb object when you are finished using it.