Which three patterns could be applied to reduce the complexity of this Front Controller?

A company created its own MVC-like framework in the years before Struts and JSF. Unfortunately,
the company’s Front Controller has become bloated with too many features including fine-grained
authorization, view dispatching, and business logic invocation. Which three patterns could be
applied to reduce the complexity of this Front Controller? (Choose three.)

A.
Mediator

B.
Command