W: I thought that your potatoes are seventy cents a pound.
M: They used to, but the price has gone up thirty cents.

How much will the woman pay if she buys two pounds of potatoes（）

A. the poor families often do not have enough food to eat
B. the hunger for the poor family is just short-term
C. not all the poor families encounter food-shortage
D. all the poor families do not have food to eat

A. The increase of raw materials.
B. The growth stopping at a peak.
C. The further increase of labours.
D. The volume expansion of goods.