To begin with D is invalid, as one person being God does not make him the Trinity. Nor does being the mother of a member of Congress make her the mother of Congress. God is a Trinity, and while Jesus is rightly called God as He is indeed God by nature, yet could not be God alone.
And which illustrates the problem with the uncritical use of the phrase, "Mother of God," which too easily conveys ontologically begetting Divinity. As much as you may want to avoid Mary being inferred to be the mother of the Trinity, the popular abundant use of MOG easily infers Mary as at least being some sort of Divine goddess, and the protest against MOG cannot be separated from the hyper hyperdulia ascribed to her.
As i have said, what Ratzinger said about the use of the term " Co-redemptrix" that it "departs to too great an extent from the language of Scripture and of the Fathers and therefore gives rise to misunderstandings, applies to MOG as regards the language of Scripture.
Instead of saying anyone is the mother of God, Scripture even adds "as concerning the flesh Christ came, who is over all, God blessed for ever. Amen" (Romans 9:5) when stating that Christ came out of Israel.
And as concerns the logic of the polemic "if Mary is the mother of Jesus, and if Jesus is God, then Mary is the Mother of God," one could say that since the Jews (standing for us) killed Christ, and Christ is God, then... Technically allowed with equivocation, but you see the problem. Also, CARM states ,
There is a sense in which the syllogism is true but also another in which it is not. Let's take a look.
A syllogism is a set of premises with a conclusion. Here is their syllogism about Mary . . .
Within this syllogism is the fallacy of equivocation. This fallacy occurs when a word or words change meaning in the usage of an argument.
That was obvious when it was first posted... here we are 1,000 posts later.
Do you think he/she will stop trying?
No. Neither do I.
Below may be where the catholic is getting this from.
I've often wondered why roman catholics are so insistent on this. I do not think they realize what they are saying and how they are being duped.
The salutation of the angel Gabriel -- chaire kecharitomene , Hail, full of grace ( Luke 1:28 ) indicates a unique abundance of grace, a supernatural, godlike state of soul, which finds its explanation only in the Immaculate Conception of Mary. www.catholicencyclopedia - immaculateconception