Of all the possible negative consequences of adopting a policy that allows for voluntary active euthanasia, which of the following does Dan Brock think is most worthy of our concern:

the concern that we will end up softening restrictions around homicide.

the slippery slope concern that allowing for voluntary active euthanasia will lead to the acceptance of non voluntary active euthanasia.

the concern that providing patients with more options will actually make them worse off.

the concern that people will no longer trust their doctors to do what is best for them.