Yo mexicano.
a.
eres
c.
soy
b.
estás
d.
estoy

select the best answer from the choices provided

For this case we have the following expression:

I mexican.

We must choose the correct verb to fill in the blank.

We observe that the verb is for the first person singular.

The tense of the verb is simple present.

Therefore, the correct word is:

Yo soy = I am

The complete sentence in English is:

I am Mexican.

The correct translation in Spanish is:

Yo soy mexicano

c. soy