This answer is unsupported. We don’t know whether the resulting problem mentioned in the last sentence cannot be solved by technical or scientific innovation.

This answer is unsupported. We don’t know from the stimulus what should or should not be done. The information here is presented without value judgements.

This answer is unsupported. The stimulus is limited to one example of a positive improvement resulting in a negative consequence. We don’t know if this pattern occurs in every enhancement.

This answer is unsupported. The stimulus never talks about a "preoccupation" or obsession with helping people live longer, longer life is just presented as a factual result of modern medicine. And saying all institutions have this preoccupation is way beyond the scope here.

This answer is strongly supported. The stimulus establishes a causal chain beginning with solving one set of problems (prolonging people’s lives) and resulting in a different set of problems (devastating financial problems for some social welfare programs.)