Answer:
The option that fills the blank is:
- <em>México D.F o Ciudad de México.</em>
<em>- </em><em>Tenochtitlán hoy día es </em><em><u>México D.F.</u></em>
Explanation:
The translation of the sentence is:
- Tenochtitlán is Mexico D.F today.
The city of <u>Tenochtitlán</u>, whose name translates "stone cactus city" was the capital of the Mexica Empire from 1325 to 1521, tribe from which the name of Mexico and Mexico City is supposed to derive, was located on an island of the lake Texcoco, <em><u>where the center of Mexico City</u></em> is currently located, or formerly Mexico D.F.
It is said that the shield of Mexico (an eagle perched on a cactus) is because the Mexicas saw the scene just when they were looking for a place to found the city.