没懂

问题如下：

What does the 2022 Morningstar survey indicate about the significance of ESG to institutional asset owners?

选项：

A.ESG is 'fairly material' to 'very material' to their total portfolio. B.ESG is 'not material' to their total portfolio. C.ESG is 'slightly material' to their total portfolio.

解释：

A is correct. The Morningstar survey of 500 institutional asset owners in 2022 found that 85% of them state that ESG is 'fairly material' to 'very material' to their total portfolio. This shows a significant acknowledgment of the importance of ESG factors in their investment decision-making.