问题
单项选择题
One advantage of technical analysis is that it tells the analyst:（）
A. Why investors are buying.
B. When to buy and why investors are buying.
C. When to buy; not why investors are buying.
答案
参考答案：C
解析：
The four advantages of technical analysis are: it's quick and easy; it does not involve adjusting for accounting problems; it incorporates psychological as well as economic reasons behind price changes; and it tells when to buy, not why investors are buying.