You use preterite to describe an action that took place and was fully done, Ex. José entro a la habitación, you can see John went into the room, he completed the action. On the other hand, imperfect tense doesn't specificate if the action was completed, Ex. José entraba a la habitación, it doesn't tell us if José fully entered the room.
Answer:
C. A principal
Explanation:
A principal will not be directed in the form "tú" (informal) but "usted" (<u>formal</u>).
<h3><em><u>MissSpanish</u></em></h3>
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<h2>Skandar</h2>
