ExplanationSince punctilious means having very strong attention to detail, especially with etiquette, this is a good thing to describe service. The word while tells you that you need something in the other direction for cuisine, so you need a word that means the food is not too great.
Obsequious means flattering, eliminate choice (A). Both quotidian and pedestrian mean commonplace or boring, so keep choices (B) and (D). Distasteful could work, because it could mean unpleasant tasting, but there is no synonym for this word in the choices, and therefore no way to make the sentence equivalent with another one of the choices. Eliminate choice (C).
Gustatory means having to do with the sense of taste. This is too broad, so eliminate choice (E). Pedantic is a synonym for punctilious, but we need the opposite, so eliminate choice (F).
Hence options B and D is correct!
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