Whether the Annunciation took place in becoming order?

Objections

Objection 1 : It would seem that the Annunciation did not take place in becoming order. For the dignity of the Mother of God results from the child she conceived. But the cause should be made known before the effect. Therefore the angel should have announced to the Virgin the conception of her child before acknowledging her dignity in greeting her.
Objection 2 : Further, proof should be omitted in things which admit of no doubt; and premised where doubt is possible. But the angel seems first to have announced what the virgin might doubt, and which, because of her doubt, would make her ask: "How shall this be done?" and afterwards to have given the proof, alleging both the instance of Elizabeth and the omnipotence of God. Therefore the Annunciation was made by the angel in unbecoming order.
Objection 3 : Further, the greater cannot be adequately proved by the less. But it was a greater wonder for a virgin than for an old woman to be with child. Therefore the angel's proof was insufficient to demonstrate the conception of a virgin from that of an old woman.