Final answer:
To employ both an overall score and a behavior score in a smart campaign, one should create separate flow actions. This allows for detailed and customized management of scoring rules within a single campaign.
Step-by-step explanation:
If you want to employ both an overall score and a behavior score in a smart campaign, the action you should take is B. Create separate flow actions.
By creating separate flow actions within a smart campaign, you can effectively manage and apply different scoring rules for the overall score and the behavior score. This allows for a more granular level of detail and customization versus having to manage multiple campaigns or lists.