Your company has a Microsoft 365 subscription.

You implement Microsoft Azure Information Protection.

You need to automatically protect email messages that contain the word Confidential in the subject line.

What should you create?

A. a mail flow rule from the Exchange admin center

B. a message trace from the Security & Compliance admin center
C. a supervision policy from the Security & Compliance admin center
D. a sharing policy from the Exchange admin center

Reference:
https://docs.microsoft.com/en-us/azure/information-protection/configure-exo-rules