问题如下：
The market price of Jack’ investment is 7,000, while the purchase price of this asset is 10,000. Assume Jack sells the asset; the investment losses can offset investment income to avoid some tax. If he does it, how much tax can be exempted in this year with a 20% tax rate?
选项： A. 0
B. 600
C. 3,
000
解释：
B is correct.
考点：Tax Alpha
解析：如果Jack卖出资产，那么亏算额便是10,000-7,000=3,000。这部分损失是可以抵税的。于是有：3000×20% = 600
不应该是how much taxes can be reduced的吗？用excempted会有点歧义吧？
