问题如下：
SD&R Capital (SD&R), a global asset management company, specializes in fixed-income investments. Molly Compton, chief investment officer, is meeting with a prospective client, Leah Mowery of DePuy Financial Company (DFC).
Mowery informs Compton that DFC’s previous fixed income manager focused on the interest rate sensitivities of assets and liabilities when making asset allocation decisions. Compton explains that, in contrast, SD&R’s investment process first analyzes the size and timing of client liabilities, then builds an asset portfolio based on the interest rate sensitivity of those liabilities.
The investment process followed by DFC’s previous fixed-income manager is best described as:
选项：
A.asset-driven liabilities
liability-driven investing
asset–liability management
解释：
C is correct.
Asset–liability management strategies consider both assets and liabilities in the portfolio decision-making process. Mowery notes that DFC’s previous fixed-income manager attempted to control for interest rate risk by focusing on both the asset and the liability side of the company’s balance sheet. The previous manager thus followed an asset–liability management strategy
为什么在另一个题目里（No.PZ2018120301000021）previous manager的方法就是 liability-driven？
