Which is not a "culture of life" issue?
abortion
adoption
stem cell research
euthanasia

The correct answer is B.

'Culture of life' is a belief that human life is sacred at any stage and thus protected. Any stage means from the point of conception till death.

Abortion is considered an act of murder and is totally opposed by followers of the 'culture of life' theory. A human being exists from the very point of conception and nobody has the right to kill it.

Stem cell research is controversial and an issue for'culture of life' as well because during the process many embryos are being destroyed or used for medical trials. The practice of choosing baby's gender is also controversial as it goes against the law of nature. Stem cell research is also used to see if the embryo has an incurable illness, which is seen as an intolerable practice as well as many ill-developed embryos (living human beings) are being destroyed.  

Euthanasia is another issued seen in a very negative life, as nobody has the right to terminate their own life according to the above theory.

Only adoption is not an issue because it does not go against killing human beings.