I have a tiny off-topic question relating the articles of the nouns before qui/que.
Must the articles always be "les" instead of "des" because the noun is defined by qui/que later on already. Is this the right way to understand it?
The examples in this lesson always use un/une and verb of preference like "adorer" (which we all know must go with definite articles).
So I'm just asking what if I want to say: "They are the girls who I saw yesterday". Should it be:
a) Elles sont les filles que j'ai vues hier
b) Elles sont des filles que j'ai vues hier