The basis for the Doctrine of Double Effect relates to:

The Doctrine of Double Effect is based on the principle that an action having both a good and a bad effect can be ethically permissible if certain conditions are met. Central to this doctrine is the intention behind the action, meaning that the individual's intention must be to achieve the good effect, while the bad effect is a secondary, unintended consequence.

In the context of medical ethics, this principle often applies to situations where a treatment may alleviate pain or save a patient’s life, but it might also cause harm or hasten death. Healthcare professionals evaluate their intentions and the consequences of their actions to navigate complex ethical dilemmas, ensuring that they prioritize the patient's well-being.

The other options do not directly relate to the ethical considerations encompassed by the Doctrine of Double Effect. Multiple witnesses pertain to legal concerns rather than ethical ones, the legal age of consent is a matter of law and medical ethics but does not directly tie into the doctrine, and healthcare board involvement is primarily administrative and regulatory, rather than focused on the ethical implications of actions taken by healthcare providers.