Step 1: Identify the Question The word assumptions in the question stem indicates that this is a Find the Assumption question.
Step 2: Deconstruct the Argument W: bus fare $1 → $1.25
Prop 1: 18 tokens/$20
Prop 2: 9 tokens/$10 (same $/token; $20 too much if poor)
The question specifically asks for assumptions related to the alternative proposal. So, for the purpose of solving this problem, the conclusion is that 9 tokens should be sold for $10.00. The premise is that $20.00 is too much for poor riders to pay at once.
Step 3: Pause and State the GoalOn Find the Assumption questions, the right answer is something that the argument assumes to be true. The assumption is a fact, not stated in the argument, that must be true; if it turns out to be false, the conclusion won’t make logical sense. In this case, the assumption is something that has to be true in order for the critics’ proposal of 9 tokens for $10 to help poor riders.
Step 4: Work from Wrong to Right(A) The critics actually state the opposite of this: that the fare increase will make it more difficult for some poor residents of Workney to ride the bus. Since an assumption will always support the argument, rather than work against it, this cannot be an assumption.
(B) The critics’ argument is only about the impact of the proposal on poor bus riders. In order for the proposal to make logical sense, it only has to be better than the alternative for poor bus riders. This could still be the case even if relatively few poor riders take advantage of the offer, compared to wealthier bus riders who do so.
(C) CORRECT. The critics base their reasoning on the fact that $20.00 is too much for poor bus riders to pay at once. Therefore, riders should only have to pay $10.00. For this to make logical sense, $10.00 must not be an excessive amount to pay at once. If it were, the critics’ conclusion would not be reasonable. So, this answer choice is an assumption.
(D) This answer choice explains why the fare increase is necessary. However, this doesn’t have to be true in order for the critics’ proposal to make sense. For instance, the proposed fare increase could be needed for something completely different, and the need to help poor riders manage the fare increase would still be valid.
(E) The argument deals with the economic impact of the proposal on poor riders, not with the number of tokens sold or how regularly they are sold. This would be relevant to an argument about the overall financial success of the proposal, but this argument deals specifically with one type of impact, which is not related to the number of tokens sold.