In January 2022, the US Supreme Court considered a challenge to a federal regulation requiring COVID-19 v How did the court rule? Oa. It struck down the regulation as unconstitutional. b. It ruled that the plaintiffs lacked standing to challenge the regulation. Oc. It upheld the regulation as within the powers of the Center for Medicare & Medicaid Services (CMS). Od. It ordered CMS to engage in further rulemaking.