Final answer:
The incorrect statement about EU policy development is that the European Parliament has no role in the process; in reality, it plays a substantial role in policy-making and budget oversight.
Step-by-step explanation:
The incorrect statement about policy development in the EU is C. The European Parliament has no role in the policy development process. In reality, the European Parliament plays a significant role, including both policy-making and budget-oversight roles. The European Commission, which is part of the EU executive branch, is responsible for promoting EU interests and is the only organ that can propose new policies, making statement B accurate. As for the Council of the European Union, it is a policy-making body that can certainly veto any new policy proposal, thus statement D is also accurate.