It is the last one “maestra”.
I think it is because in America, (a very popular country) We have many people that study Espanol so that is why many schools have kids take Spanish class, because of how many people are fluent in it.
Me gustaría presentarte ______.
Answer:
Lukas y Katharina son de Alemania. Ellos son Alemanes.
Me llamo Francisco y soy de México. Yo soy Mexicano.
Marie-Claire es de Francia. Ella es Francesa.
Belem es de Portugal. Ella es Portugués.
Tú (masculino) eres de Puerto Rico. Eres Puerto Riqueño.
Yo (masculino) soy de Bolivia. Soy Boliviano.