Answer:
True
Step-by-step explanation:
Policy can be described or known as set of plans which are use as a basis of making decisions, in order to achieve rational outcome.
Therefore, the process of complying with these set of plans or ideas is described as policy enforcement.
It should be understood that , the said set of plans , or policy are being make use by the government or organizations.
In this case, those things mentioned in the question,like lack of clearly defined roles and responsibilities, and others, are the challenges facing the enforcement of policy.