Final answer:
The option that does not describe a way in which public health agencies can practice the Institute of Medicine's core function of policy development is implementing policies to improve public health outcomes.3) Implementing policies to improve public health outcomes.
Step-by-step explanation:
The option that DOES NOT describe a way in which public health agencies can practice the Institute of Medicine's core function of policy development is 3) Implementing policies to improve public health outcomes.
Public health agencies can practice policy development by conducting research to inform policy decisions, collaborating with stakeholders to develop policies, and advocating for evidence-based policies. However, implementing policies is not a core function of policy development. Implementation refers to the actual execution of policies once they are developed, which is outside the scope of policy development.