Because Carlos is a masculine name, I would use the word <em>el </em> to talk about him.
The answer is C.que
Rico que tal?
Qué es eso? Yo estado hablando español durante años y nunca he visto esto
People who work in Ecuador make 41.8% less money than people who work in Mexico. They both speak different kinds of Spanish
4.4% of the people in Mexico are most likely to be un employed than the people in Ecuador .