🔍 Step-by-Step Breakdown of the Question
✅ Step 1: Identify the Conclusion
Conclusion: Imposing the fee at the time of salvage would reduce waste more effectively.
This is the main argument — it’s what the author wants us to believe.
✅ Step 2: Identify the Premise (supporting evidence)
Because: Consumers tend to keep old appliances longer when they face a fee to discard them.
So the logic is:
People don’t like paying fees.
If you charge the fee later (at discard time), people delay discarding → less waste.
Therefore, delaying the fee = more effective waste reduction.
✅ Step 3: The Question Task
“Which of the following, if true, most seriously weakens the argument?”
So you want to weaken the idea that:
“Charging the fee at discard time reduces waste more effectively.”
⚠️ Your Error: Focused on the Word “Longer”
You selected (C):
"For people who have bought new appliances recently, the salvage fee would not need to be paid for a number of years."
That restates what the argument already said (that the fee is paid later).
But it doesn’t weaken the idea that this would reduce waste more effectively.
✅ The Correct Answer: (A)
"Increasing the cost of disposing of an appliance properly increases the incentive to dispose of it improperly."
This directly weakens the conclusion.
It says:
Yes, people will keep their appliances longer if there’s a discard fee...
But many may just illegally dump them or bypass salvage.
→ So waste may not be reduced, or might even increase in improper form.
📉 Effectiveness of waste reduction drops → conclusion is weakened.