¿quién es muchacho rubio?
a.
el
c.
los
b.
la
d.
las

Right

This is an interrogative sentence, where the subject (noun) is masculine singular.

In Spanish grammar the article is a word that clearly indicates the gender and the number of the noun. Its function is to modify the noun it introduces.

The articles are as follows:

Defined Articles:

Singular Masculine: el

Singular Femenine: la

Plural Masculine: los

Plural Femenine: las

Indefinite Articles:

Singular Masculine: un/uno

Singular Femenine: una

Plural Masculine: unos

Plural Femenine: unas

Neutral: Lo

Contractions: al (a+el) and del (de+el)

Now, going back to the sentence, and remembering the noun muchacho (boy) is masculine singular. The article that fits here is the Defined Article in Singular masculine el

Therefore, the complete questions is:

Who is the blond boy?

a venn diagram (also known as a set diagram or logic diagram) is a diagram that shows all possible logical relations between a finite collection of different sets. they are thus a special case of euler diagrams, which do not necessarily show all relations. venn diagrams were conceived around 1880 by john venn.create a venn diagram showing all of the similarities and differences you can think of. do your best to put your comparison in spanish, and use everything you know about adjectives and comparison phrases in spanish.