1. Nuestro profesor de ciencias es my inteligente.
2. La chica japonesa es mi compañera de clase.
3. Los hermanos de ella son inteligentes y simpáticos.
4. ¿La esposa de Darío es tu hermana?
I would choose Dominican Republic their national dish is calles la bandera and most typical dishes are arroz blanco, ensalada verde, tostones, etc and the rest can be researched very simple
La costa de México tiene muchas "playas"
Hey!
While both are often used, the most accurate answer is probably answer a:
The "personal a" is necessary.
Why?
Well, when we say: "Quiero a mi esposo Jorge" we are talking specifically about the husband, that is: "lo quiero a él". Therefore, the "a" is usually used on these occasions.