You are designing an n-tier .NET Framework 4 solution that includes a Windows
Presentation Foundation (WPF) application and a Windows Workflow Foundation (WF)
component. The WF component contains functionality to incorporate frequently changing
rules. You need to recommend a tier for the deployment of the WF component that will not
degrade the performance of the WPF application. Which tier should you recommend?

A.
The data access tier

B.
The data tier

C.
The business tier

D.
The presentation tier