According to the passage. wheat prices became unmanageable because of conditions caused by______.

题目：According to the passage. wheat prices became unmanageable because of conditions caused by______.

A. farmers
B. supervisors
C. weather
D. war

喵查答案：D

[解析] 见第二段最后一句，在战时小麦价格疯涨之前，政府不愿介入。由此可知小麦的价格是由于战争而难以控制。