“Nosotros <u>estamos</u><u>bebiendo</u> muchos refrescos”
Explanation:
In order to indicate an activity or action that is currently in progress, one must use the Present Progressive tense. This tense is formed with the verb “estar” conjugated (meaning “to be”) plus the gerund form of the main verb which is the one ending in “-ando” or “-endo” such as ”caminando” (“walking”) and “bebiendo” (“drinking”).
Therefore, in order to change the sentence “Nosotros bebemos muchos refrescos” into the Present Progressive tense, one must eliminate the verb “bebemos” and add the verb “estar” conjugated according to the person “Nosotros” (which means “we” and is in the firs person plural) and the present tense; plus the gerund of the verb “beber” (which means “to drink”):
“Nosotros <u>estamos</u><u>bebiendo</u> muchos refrescos”
I would say the answer is B and C. A is not the answer because you would not find Mexican culture in Costa Rica. D is not the answer because Pan de Reyes is more of a Spanish (from Spain) dish.