A developer created a Visualforce page and a custom controller with methods to handle different buttons and events that can occur on the page.

What should the developer do to deploy to production?

A. Create a test class that provides coverage of the custom controller.

B. Create a test page that provides coverage of the Visualforce page.
C. Create a test class that provides coverage of the Visualforce page.
D. Create a test page that provides coverage of the custom controller.