______ Hemden sind weiß.
This was an exercise in the Duolingo app where you had to fill in the blank, and there were two options given:
which I found to be incorrect. In the discussion thread somebody who claimed to be a native speaker mentioned that if some adjectives are used directly before the noun, then it should be 'Meine'. But here no adjective is used before the noun, Hemden, but still 'Meine' is correct. I don't understand why.