题目：
Which of the following is most likely to result in a capital market line (CML) that is not a straight line（）
A. Investors’ risk tolerance decreasing.
B. Borrowing rate exceeds the lending rate.
C. Increase in the proportion of the portfolio invested in the risk-free asset.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：错
