The definite articles are el, los, la, and las
the indefinite articles are un, unos, una, unas
2: Falso
3:Cierto
4:Cierto
5:Cierto
6:Cierto
7:Falso
8:Falso
9:Falso
10:Falso
11:Cierto
12:Cierto
The right answer is is the second one! Hope it helps! Have an excellent day!
Do you have the links to the videos?