You are designing an ASP.NET Web application that has common navigation and layout elements on all pages.
You have the following requirements:
– Maintain common elements in a single location.
– Ensure that common elements can be modified and nested without redeploying the Web application.
– Allow developers to customize the object model from individual pages.
You need to recommend a solution that can be specified at the application, folder, or page level.
What should you recommend?

A.
Use a theme.

B.
Use a master page.

C.
Use a server control.

D.
Use a page base type.