What's the best response to: ¿dónde está tu amigo serigo? a. es en méxico < < b. es mexicano c. está en méxico

Fill the blank with a la, a las, a los, or al. carlos no en el parque.

The teacher didn't explain this at all and i don't understand this

"in english, write six to eight sentences comparing cultural aspects of greetings in spanish-speaking countries with greetings in your own culture. use what you learned in the lessons to tell about three differences and three similarities. discuss non-verbal greetings and how respect is shown. you may also include verbal greetings, but do not simply translate phrases from one language to another."