To keep depleted batteries from polluting the environment,

To keep depleted batteries from polluting the environment, the government of Ulm is discussing a mandate that would require residents to dispose of them through a special pickup service. To offset the costs of maintaining such a service, Ulm expects to charge a fee, which would be collected when batteries are discarded. Collecting the fee at the time of sale would be more effective, however, because residents are more likely to make use of a service if they see themselves as already having paid for it.
Which of the following, if true, most seriously weakens the argument?
A. If they were not anticipating the disposal cost after purchasing the batteries, residents would use more batteries, increasing the total amount of pollution.
B. The service leaves battery makers with no incentive to develop long-lasting products.
C. Residents who purchased batteries before the measure went into effect will not have had to pay the fee.
D. Residents who recharge their own batteries will not have to use the service.
E. Many depleted batteries could be recharged at substantially reduced cost.

source - ready4gmat