Final answer:
In order to avoid being classified as an MEC, a policy must pass a test of control.
Step-by-step explanation:
In order to avoid being classified as an MEC (Military Enlistment Code), a policy must pass a test of control. This means that the policy must demonstrate that it has the necessary checks and balances in place to effectively control and manage the situation it is addressing.
For example, a policy related to gun control would need to show that it includes measures to prevent illegal access to firearms and to ensure responsible ownership and use.
Other options such as a background check, a physical examination, and an age requirement are not directly related to avoiding classification as an MEC, although they may be relevant depending on the specific context of the policy.