Since the introduction of the Impanian National Health scheme, Impanians (or their private insurance companies) have had to pay only for the more unusual and sophisticated medical procedures.
Your task
Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.
Common trap
Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.
Winning move
Predict what a right answer must do, then test each choice against the conclusion-evidence gap.