请问D是什么意思

问题如下：

Insurance is an effective tool to transfer which of type of operational risk?

选项：

High frequency, low severity

Low frequency, high severity

Operational losses whose magnitude is affected by the actions of the company

Operational losses for which insurance companies only sell policies with low limits

解释：

B is correct. The purpose of insurance is to reimburse large losses, or operational risk events with high severity. Answer c. is incorrect because this type of moral hazard should result in much higher premiums.