ExplanationThe suggestion claims that workers’ well-being would be better served if unions took over the role currently played by the government. To argue most strongly against that claim, we want an option that directly challenges the idea that unions would do a better job than the government.
D says that many workers’ unions might lack the experience needed to create better protection guidelines than those already established by the government.
If that’s true, then shifting authority from the government to unions would not improve worker well-being and could even make things worse. That strikes at the heart of the suggestion.
A and
B point to internal conflicts or disagreements, but those don’t show that workers would be worse off than under government regulation.
C raises a potential risk about funding, but it’s speculative and indirect.
E says mistreatment may still occur, which doesn’t undermine the claim that unions would do better overall than the government, no system is perfect.
So
D most directly and forcefully undercuts the proposal.
The correct answer is D.