The third sentence down is the right answer. It doesn't use slang.
To create parallel structure in the sentence, the phrase that would best replace the words "only to offer dinner" is restaurants that offer only dinner.
A parallel structure means that the same form of words or phrases is used in both sentences or parts of the sentence. So here, the first part of the sentence says "restaurants that offer live music..." and in order for it to be a parallel structure, the other part also has to say "restaurants that offer only dinner."
The advancement of innovation decidedly influenced our wellbeing is that it has expanded the quality and accessibility of medications. Present day innovation is just a progression of old innovation, the effect of innovation in current life is immeasurable, we utilize innovation in various ways and now and then the way we execute different advances winds up hurting our lives or the general public we leave in.
