What is the requirement?

exams DEX-450 DEX-450 exam 0 Comments

A developer wants to override a button using Visualforce on an object.

What is the requirement?
A . The controller or extension must have a PageReference method.
B . The standardController attribute must be set to the object.
C . The action attribute must be set to a controller method.
D . The object record must be instantiated in a controller or extension.

Answer: B