The multiple choice sections seem to auto-capitalize the choices. This makes "qay" and "Qay" the same.
What is the effect?
Do you see two Qay options?
If so, do you have to pick both to get the exercise marked correct? Or one of them and it's impossible to guess which one?
Note that the male voice says qay while the female voice says Qay. This is a glitch in Duolingo, which doesn't recognize that the two sounds are different.