Which approach should you recommend?

You are developing an Internet Web site. You plan to use SharePoint 2010 for content management. The Web
site design includes extensive graphics.
You need to ensure that the following project requirements for the site are met:
Complex structural changes to support the new branding
.Consistency across all of its pages and sub sites
.Support for multiple browsers
Which approach should you recommend?

A.
Develop a new custom master page to be applied throughout the site.

B.
Develop a new custom template to be used throughout the site.

C.
Use PowerPoint 2010 themes to apply new custom SharePoint branding throughout the site.

D.
Specify an alternate cascading style sheet (CSS) file to use for all pages within the site.