"Are they humans or sheep?"

[maynimus]

How do you know in this case whether to use het or zij? I used het and it excepted it

[Meechxx]

I was wondering the same thing. I used zij/ze and it was correct for me as well. I guess there is no difference?

[DuoIngTheThing]

Is "schapen" the plural form of "sheep" and "schaap" the singular form of "sheep"?

[maynimus]

yes