LOL...
Hate to say it, but it looks like you are trolling for an argument rather than an honest debate...
Any one of the four answers is correct depending on who is answering it. One persons opinion is different than another depending on how they believe, and no one answer would be wrong. Should have made this a "poll."
Personally, I would only have a problem with "D," but if this girl is of Muslim heritage, it may be her preference that the child be raised that way.
Is the "Christian" couple Westboro Baptist, Quaker, Catholic, Protestant, Morman, or what? That will make a difference for some. i would be inclined to say "no" to the westboro Baptist.
Is the Atheist couple the common type person, ultra green radical, or what? Of course, there are some atheists I would accept and some I wouldn't.
How are sexuals any different than straits in raising kids? We have both mothers and fathers of strait parents who sexually assault kids. Just because a couple is sexual doesn't mean there will be any statistical difference. Of all the gays I have ever know to be gay, I have only known two who seemed mentally unbalanced and only one who had to proclaim it to the world.
I work with a woman who is married to another woman. I would have no problem with her adopting.