Final answer:
An Extension of comment period in the Federal Register provides individuals with additional time to participate in the regulatory process by allowing more time for public feedback on proposed rules.
Step-by-step explanation:
The action in the Federal Register (FR) that gives individuals more time to participate in the regulatory process is B) Extension of comment period. When a proposed rule is announced in the FR, there is typically a comment period during which the public can submit feedback and concerns about the proposed regulation.
If the agency overseeing the rulemaking extends this period, it allows for greater public participation and more time for stakeholders to analyze the rule and prepare their comments.