The phrase "why the choice" is correct and usable in written English.
You can use this phrase when you want to ask about the reasoning behind why someone made a particular decision. For example: "I'm curious, why the choice to travel to France for your vacation?".
Why the choice of "Stimmung," an hourlong, microtonal piece for voices?
"There's really no reason why the choice to shave, or not, should be a big deal.
This is why the choice of its latest triptych of launches at first seems odd.
That is why the choice is so stark for the southern European countries, which are tied into the single-currency zone.
This is why the choice of Wu was a surprise, and, in some quarters, a disappointment: Shouldn't someone else get a chance to attract investors?
Whichever orchestra came with him was of secondary importance, and it isn't clear why the choice was the London Symphony, as against the Berlin Philharmonic or the Leipzig Gewandhaus Orchestra, with which Nikisch was also associated.
That explains in part why the choices facing the president are so complicated.
In his commencement speech, he developed a similarly skeptical line, saying, "Economics is a highly sophisticated field of thought that is superb at explaining to policy-makers precisely why the choices they made in the past were wrong.
As for economics, he said it was a "highly sophisticated field of thought that is superb at explaining to policy makers precisely why the choices they made in the past were wrong".
One is that we return to a state of innocence and the other is that we go back armed with full knowledge of why the choices we made were wrong.
That's why the choicest table at Jean-Georges Vongerichten's newest restaurant is literally in the kitchen.
