Los niños estaban tan cansados que se quedaron / se pusieron dormidos en el coche. Which one fits the sentence better?

Match the word, country, or name with the correct phrase.match term definition poly glot a)  these are ways of speaking that are rooted in latin.romance languagesb)  this is a person who speaks several languages.migrationc)  it is moving to another country.immigrationd)  it is moving to another region within the same country.