An example of a regulatory policy is making rules about pesticides used on crops. Hence, Option A is correct.
A policy is formed by the government with the purpose of imposing control and restrictions on certain activities or behaviour. It is not only about the policy or the rules for governing, but also accepted as a concept for governance.
From all the given options, the first one is to justify the regulatory policy, i.e., it is about making rules against the pesticides that are used by farmers.
Therefore, Option A, making rules about pesticides used on crops, is correct.
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