It is not clearly shown the underlined sentence but I will identify the all the parts of the sentence
The patient is the subject, showed is the verb, the dentist is the indirect object and her sore tooth is the direct object. I except your question was this
Axius tried to kill Achilles, and one of the reasons why he did not achieve his goals was because of Hephaestus. Hephaestus helped Achilles when Axius tried to kill him, basically what he did was drying up Axius rivers with a great fire.
And all this labor and this large outcry,
Is only for a silly butterfly.
The word or phrase that best connects the ideas in the sentences in question is D, that is, your anwer would be "in contrast".
The first part of the passage shows that we should have the right to choose sodas or snacks if we want to, we should be given the right to do that. On the contrary, the second part of the passage talks about that sometimes having too many options is not a good thing and it makes us unable to make the right choice.