Question 132: What is the correct action to take when using the SPSite or SPWeb object in the Web Part Code:
a.Open the object in the context of the user
b.Call the Dispose() method once we finished it using or instantiate it in a Using statement
c.Call IISReset()when you need exclusive access to the SPSite or SPWeb Objects
d.Call SPDispose to ensure all underlying COM objects are disposed.