Correct Answer: B
The Argument of Net Neutrality Supporters: No Net Neutrality means one group gets penalized for another group's choice (i.e., high-bandwidth users get relegated to another lane that becomes slower due to congestion). Supporters of Net Neutrality referenced in the original argument base their position on the principle that one group should not be penalized by the actions of another group. If this principle can be shown to give reason to oppose Net Neutrality, the argument in support of Net Neutrality mentioned above will be weakened. Note that it is not enough to weaken the overall argument in support of Net Neutrality we must weaken "the argument of the supporters of Net Neutrality mentioned above."
A. This answer does not undermine the fact that one group is being penalized for the actions of another group nor does it show how the argument is flawed. Simply because one group is required to use high-bandwidth services does not mean they (or another group) are being penalized for this requirement.
B. This answer uses the principle that supporters of Net Neutrality used and shows how the principle can also be used to argue against Net Neutrality, thereby seriously weakening the supporters' argument. The cost of purchasing additional and expensive bandwidth will be passed on to low-bandwidth customers, “disproportionately increasing the price of access for low-bandwidth users." In other words, the actions of one group (high bandwidth users benefiting from Net Neutrality) will harm another group (low bandwidth users who carry a disproportionate burden of the cost of Net Neutrality).
C. This answer may strengthen the overall public support for Net Neutrality (i.e., it is opposed by lobbyists paid for by big telecommunications firms). This answer does not weaken the argument mentioned above since that argument is based upon one group suffering for the actions of another.
D. Although this answer weakens the overall argument in support of Net Neutrality, it does not weaken the argument mentioned above since that argument is based upon one group suffering for the actions of another while the argument in this answer choice is based upon satisfaction among Internet users.
E. This answer actually strengthens not weakens the argument in favor of implementing Net Neutrality.