问题如下：
David, an individual investor says, - I have 25 years of investment experiences. I know that market prices can be affected by emotions of investors, therefore I focus on the buy and sell signals. I trust those analysts who also take price-volume analysis into consideration.-
David's opinion on investment strategy follows：
选项：
A. the adaptive markets hypothesis (AMH).
B. a behavioral approach to asset pricing.
C. Behavioral Portfolio Theory (BPT).
解释：
B is correct.
考点：行为金融学中的投资组合构建模型
?解析：Behavioral asset pricing model 在资产定价模型中增加了情感溢价sentiment premium，题干中David认为市场价格受投资者情绪影响，所以与这个模型一致。
AMH强调适应市场，根据市场变化做出投资决策的调整；BPT强调基于目标，分层做投资组合。
上一题里面刚说过这个人的行为是不符合行为金融学，而是传统金融学里面运用技术分析的方法。这里又问他用了那种行为金融的方式。。这不是自相矛盾吗