Muchachas colombianas son bonitas.
a.
el
c.
los
b.
la
d.
las

The right answer is d. Las

Definite articles are used to talk about specific nouns. In Spanish, there are four definite articles: el, la, los, and las and they often all translate to the same word in English: the. Nouns are often accompanied by articles. So the use of them points out the gender (either masculine or feminine) and number (either singular or plural) of a noun. In the Table below is shown the four forms that Spanish definite articles take. There are some exceptions to this rule. For example, if a feminine singular noun starts with a stressed a or ha sound then we use the masculine definite article rather than the feminine definite article.

Therefore:

Las muchachas colombianas son bonitas (Colombian girls are pretty)

hi, so i look up the video and the 2 poems are the same

en la oscuridad te llame.

de la oscuridad me llamaste.

reconoci tu voz.

reconosiste la mia.

vente para aca, dije.

respondiste: donde estas papa ? no te veo.

aqui, estoy aqui, dije.

tengo mido, dijiste.

no, mi hijo esperate! vengo a donde estas.

esta oscuro, no veo nada, tengo miedo.

no tengas miedo hijito, ahorita vengo

pronto papa, te espero.