麻烦问下老师，三个statement分别在讲义中的哪里？

问题如下：

Wang is a junior credit strategist. He is discussing the top-down approach and bottom-up approach with his supervisor.

Wang made the following statements:

Statement 1: A top-down approach to sector allocation is largely based on a portfolio manager’s macro views

Statement 2: The key aspect of the bottom-up approach to credit strategy is assessing the relative value of individual bonds or issuers.

Statement 3: In the top-down approach, the investor generally has conducted extensive research on companies within the industries.

According to the information above, which of the following is correct?

选项：

Statement 1 and Statement 3 are correct

Statement 1 is correct; Statement 2 is correct

Statement 2 and statement 3 are wrong

解释：

答案：B is correct.

考点：Top-down和Bottom-up方法的比较

解析：Statement 1和Statement 2正确，为原版书给定结论。Statement 3错误，Statement 3描述的情况属于Bottom-up的情况。