I used the law of supply and demand here. I don't know if the GMAT requires us to use it but I found it helpful in this question.
If supply exceeds demand, prices go down.
If demand exceeds supply, prices go up.
As a result of consumers’ increased awareness of the health risks associated with heavy consumption of red meat, the meat of the ostrich has become increasingly popular as a low-fat, low cholesterol alternative to beef. Accordingly, the number of ostrich farms in the United States has nearly quadrupled since 1980, flooding markets with ostrich products. However, the price-per pound of ostrich meat, adjusted for inflation, has not decreased at all over the past several years. Which of the following, if true, would best explain the steady price-per-pound of ostrich meat?
A. The demand for ostrich products has outpaced the supply.
Demand has exceed the supply. This fits the bill.B. Ostriches are especially difficult to breed in captivity.
This should apply for both situations, in 1980 and now. Since it states that the market has been flooding with ostrich products the price of meat should go down unless the demand has outweighed the supply.C. Other types of meat, such as pork and poultry, have decreased in price over the past several years.
Other meat markets does not impact the ostrich market.D. Purveyors of beef have not attempted to counter beef’s poor public image.
Same as C.E. The number of supermarkets that carry ostrich meat has increased steadily since 1980.
Supply has gone up but it does not say anything about the demand.