0 Truly, only "choice" makes sense. Perhaps he mis-typed and then blindly accepted the suggestion of his spell checker. But the only way to resolve this is to simply ask him. I will be willing to bet that he will say something like "Oops - I made a typo! I meant 'word choice' of course." 0-
0 If it was a typed comment then it is even easier to see it as a mistake than if it had been spoken. It would be hard to confuse 'choice' with 'choke' in speech. However, the letters o and i (the correct letters) are right above the letter k (the typo letter). He must have hit the wrong key 'k' instead of one of the correct letters, and the spellcheck changed it to choke without him noticing.