The answer would be A.
Una computadora= The computer
The other answers would not have anything to do with una computadora since the other options are other subjects such as history, spanish, and science.
Hope this helps! :3
<h3>Fill in the blank with the correct form of preterite or imperfect of the verb in parentheses. Tú Answer (used to be) bajo. (ser)</h3>
Answer: Tú eras bajo.
Translation: You used to be short.
Explanation: If the action of the verb in the past was habitual, then the correct verb tense is imperfect. Since the subject in this sentence is "Tú", that is second-person in the singular, so the correct form is: Tú eras.

Tu because If you put Mi or mis son rojos it says my are red which dosen't really make sense. Since you put tu in front of son (plual) it would be they are red.
Answer:
La plaza tiene una torre,
la torre tiene un balcón,
el balcón tiene una dama,
la dama una blanca flor.
Ha pasado un caballero,
¡quién sabe por qué pasó!,
y se ha llevado la plaza
con su torre y su balcón,
con su balcón y su dama
su dama y su blanca flor.
Explanation:
The poem translates to:
The plaza has a tower
the tower has a balcony
the balcony has a lady
the lady has a white flower.
A gentleman has walked by,
who knows what for!
and he has taken the plaza
with its tower and its balcony,
with its balcony and its lady,
its lady and her white flower.