Yes. It is incorrect without the definite article.
6 februari 2016
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Just a comment, you can't actually choose the *best* answer randomly. You could choose the winner randomly but not the best. As saying the best means you have evaluated all the answers and choose the best one based on it's merits.
6 februari 2016
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Heb je je antwoorden nog steeds niet gevonden?
Schrijf je vragen op en laat de moedertaalsprekers je helpen!