wasnt Roxas talking about the Keyblade. Like you all said, its not Terra cuz he said he chose Xeahnort. Though some of you said DIZ cuz he chose Sora to destroy orginazation 13. But come on ask yourselves, why would Roxas want to know the anserw to something like that? And why wouldnt DIZ choose Mickey, he is stronger than Sora and knows a lot more than he does, plus DIZ knows him better.Though i still wouldnt choose Mickey. Id say its the Keyblade. A Keyblade chooses a person based on the strenght of their heart. Sora said in KH his friends are his power and when Roxas saw those pic of his friends, he understood why Sora had the Keyblade. Heres one more thing, even if the Keyblade wasnt meant for Sora, it still chose to stay with him, otherwise in KH when it went to Riku it would have stayed with him. But Sora had a strong heart cuz of his friends which made his light stronger and Kingdom Key is from the realm of light so it in the end, it did technically choose Sora over Riku. Roxas probably wanted to know why the Keyblade chose Sora thats all
a[ diz wouldnt ask mickey or riku cause they both asid they wouldnt help in revenge
b] i doubt he cared why it chose Sora, but we says he wants to know why the keyblade chose him , which was becasue he was Soras nobody
that was answered
c]the Kingdom key chose Sora cause Riku was overwelmed in darkness and sra was the closest availbe to weild it