Multiple Choice
Figure: Price Changes 
The figure (from Global Financial Data, EIA) illustrates in percentage terms how the price of onions (in gray) and crude oil (in black) fluctuate over time. The price of onions clearly fluctuates more than oil. In 1958, the United States Congress banned future markets on onions. How does this historical fact explain the difference in deviation between oil and onions?
A) The ban prevented analysts from buying and selling based on the price of onions' current supply and demand.
B) The ban encouraged speculation on the onion, causing its price to fluctuate widely as different bubbles grew and popped.
C) The ban destroyed any incentive for market participants to understand the onion industry.
D) The ban forced market participants to buy and sell based solely on current supply and demand.
Correct Answer:
Verified
Correct Answer:
Verified
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