Take context from the input text and decide on the accurate relationship between 'CBS Corporation' and 'CBS' from the options provided.
Options: brand, platform, subsidiary, industry

The site, http://cbspulse.com , is a cross-divisional effort across CBS Corporation being spearheaded by CBS Local Digital Media and features content from across the Company’s world-class editorial organizations including CBS News, CBS Radio, CBS Local, CBS Interactive and Simon & Schuster.
subsidiary