It should be A) Yo soy Chilena, but if not try D)
Answer: Mexico City
Explanation: Mexico’s capital is a kaleidoscope of activity, much like a never-ending mercado of colourful stalls, rich smells, and unknown delicacies. The 8.5 million inhabitants always find room for one more though, opening their doors to over 150 museums, 130 festivals, 40 parks, and about a bajillion taco stands. Refuge from the constant whirlwind is easy to find in chic neighborhoods dotted with cool fountains and in nearby Aztec archeological sites full of earthy energy. What’s more: this is not just one of the most international Spanish speaking countries, but it operates on the most “pure” Spanish for those that want a sprinkle of formality among their orders of antiojos.
Answer:
no it's your choice although you can get paid a lot for learning both languages! plus learning Spanish is not that hard :)
