Which three actions should you perform?

You are developing a Windows Store app.
The app must implement only the minimum requirements of the Search contract.
You need to define the Search contract.
Which three actions should you perform? Each correct answer presents part of the solution.

A.
Add filters to the Search Results page.

B.
Add search suggestions.

C.
Declare the Search contract in the app manifest.

D.
Respond to a search query while the app is the main app on the screen.

E.
Create a basic Search Results page for the app.