Correct Answer Choice (A) is still confusing me. Negating it would be: "Large-scale gov't projects NEVER enhance the welfare of society." That is completely in line with the conclusion: "referendum [through large scale gov't projects] diminish welfare" "Never enhancing"...

I'm still very confused. I take "too often they resort to using advertised price cuts to promote their wares" as an observed fact, and "they cut into profit margins and undermine customer loyalty" as the consequence of that "too often resort". So I still don't see why D...