Analyze the relationship between 'ViacomCBS' and 'CBS' within the context of the input sentence.
Options: director/manager, subsidiary, developer, platform

So Bob, I'd love to hear your thoughts on how you see that developing, how products like EyeQ gives CBS an advantage -- ViacomCBS an advantage and why advertisers are spending with you rather than, say, a platform like an Amazon Fire or Roku TV.
subsidiary