During an economic depression, it is common for food prices to increase even as incomes decrease. Surprisingly, however, researchers determined that during a depression, for every 5 percent increase in the cost of bread, the lowest socioeconomic class actually increases the amount of bread purchased per capita by 3 percent.Which of the following hypotheses best accounts for the researchers’ findings?The finding is surprising only if we assume that when bread gets more expensive, poor households should buy less of it. So the best hypothesis must explain why they would buy
more bread even when its price rises.
(A) Not all food costs increase during a depression; some food items actually become less expensive.
This does not explain why bread purchases specifically would rise. If other foods become cheaper, people might shift away from bread.
(B) Because bread consumption does not increase by the same percentage as the cost does, people are likely consuming more of other food items to compensate.
This does not explain the finding. It just guesses that people may also eat other foods.
(C) When incomes decrease, people are typically forced to spend a larger proportion of their income on basic needs, such as food and housing.
This explains why food matters more, but it does not explain why bread consumption itself rises.
(D) People who suddenly cannot afford more expensive foods, such as meat, must compensate by consuming more inexpensive foods, such as grains.
This is the best answer. Even if bread becomes more expensive, it may still be cheaper than foods like meat. So poorer households may buy more bread as a substitute for costlier foods.
(E) During a depression, people in the lowest socioeconomic class will continue to spend the same amount of money on food as they did before the depression began.
This does not explain why they would buy more bread. In fact, if bread costs more and food spending stays the same, that would tend to limit purchases.
Answer: (D)