Porfavor, sirva las chuletas de cerdo con estos frijoles Ud.
Why?
A) Dé, sabores. These wouldn't fit in the sentence, even if we tried.
B) Sirvan, sabores. We could do these words, except that sirvan is towards a group and not a single person.
C) Traiga, suelos. We could also fit one of these words in, but we need both words to fit in the sentence.
This is how we know it's D) Sirva, frijoles, because sirva is directed to one person, Ud, and frijoles is a food that could go with chuletas.
Hope this helps!~
