Answer: (D)
Explanation:
The argument concludes that
overall cereal sales will rise significantly because manufacturers are reducing wholesale prices by 20%, and others will follow.
However, this conclusion assumes that the price reduction at the manufacturer level will actually lead to lower prices for consumers.
If supermarkets do not pass on the lower wholesale prices to customers (for example, by keeping prices the same to increase their margins), then consumers will not face lower prices, and sales may not increase at all.
Therefore, it is most useful to establish whether the prices that supermarkets charge consumers will reflect the lower prices they pay manufacturers, which is exactly what option (D) addresses.
Why others are less useful:
(A) Explains
why prices rose earlier, not whether sales will now increase.
(B) Brand loyalty does not directly determine whether lower prices increase overall sales.
(C) Variety changes do not test the key assumption about prices and sales.
(E) Focuses on specific cereal types, not overall market sales.
Hence, (D) is the correct answer.
prem2056
Because of steep increases in the average price per box of cereal over the last 10 years, overall sales of cereal have recently begun to drop. In an attempt to improve sales, one major cereal manufacturer reduced the wholesale prices of its cereals by 20 percent. Since most other cereal manufacturers have announced that they will follow suit, it is likely that the level of overall sales of cereal will rise significantly.
Which of the following would it be most useful to establish in evaluating the argument?
(A) Whether the high marketing expenses of the highly competitive cereal market led to the increase in cereal prices
(B) Whether cereal manufacturers use marketing techniques that encourage brand loyalty among consumers
(C) Whether the variety of cereals available on the market has significantly increased over the last 10 years
(D) Whether the prices that supermarkets charge for these cereals will reflect the lower prices the supermarkets will be paying the manufacturers
(E) Whether the sales of certain types of cereal have declined disproportionately over the last 10 years