question: anti-epidemic:vaccines
choices.label: A B C D
choices.text: road repair:subgrade petition:complaint rebuttal:data medical treatment:patients
explanation: "anti-epidemic" will use "vaccine", and "vaccine" has the function of "anti-epidemic". "subgrade" is the foundation of the track or pavement. when "building a road", it is necessary to build a "subgrade". "subgrade" corresponds to "road repair", but the corresponding relationship is inconsistent with the query. a "petition" is a document in which a citizen or legal person files a lawsuit in the people's court for infringement of his or her lawful rights and interests. there is no obvious logical relationship between a "petition" and a "complaint". "data" can be used for "rebuttal", and "data" corresponds to "rebuttal". "medical treatment" refers to the treatment and treatment of diseases. the object of "patient" service is "medical treatment", and "medical" corresponds to "patient", but the corresponding relationship is inconsistent with the query.
relation: vaccines anti-epidemic R3.3
relation: subgrade road repair R3.10
relation: data rebuttal R3.3
relation: medical treatment patients R3.10