Premise:
1) Sales of processed meat by US grocery chains: 1995 up 5% over 1994
2) However increase is following a downward sales trend since 1991
3) 1991: sales up 16.4% over 1990
Conclusion: 25% disount offered this year by processed meat manufacturers has failed to generate more sales of processed meat
(A) Consumer sales usually increase in direct proportion to the decrease in the wholesale price paid by grocery chains.
- If consumer sales increase in direct proportion to the decrease in wholesale price paid by grocery chains, then surly the 25% discount offered by processed meat manufacturers would have generate a slight improvement in terms of consumer sales. So (A) is out.
(B) Due to market saturation, sales of processed meat products in 1995 could not increase by more than five and a half percent.
- This is really not important. The fact it can't increase by more than 5.5% points doesn't explain why 25% discounts are not attractive to generate mores sales. The sales could still increase, just that it cannot break through the 5.5% limit.
(C) Had manufacturers discounted the wholesale price by more than 25 percent, grocery chains would have increased marketing expenditures for processed meat products.
- Out of scope as we are not interested in the expenditures of the grocery chains, but their sales performance
(D) Sales of processed meat products would not have decreased if the manufacturers had not substantially reduced wholesale prices.
- This choice tells us discounts has nothing to do with sales of processed meat products. In anothers, it doesn't matter if you give 25% or even 100% discount, sales will simply not improve.
(E) Discounts in the wholesale price are rarely passed on by grocery chains to the consumers.
- We don't know the effect so we can't tell
I go with D.