You have a Microsoft 365 subscription and Microsoft 365 E5 licenses assigned to your users. You are using Microsoft Defender for Office 365, and you configure a safe attachment policy for your Sales department. Tom is a member of the Marketing department, Lisa is a member of the Sales department. 
Tom receives an email with an attachment from an external user. He forwards the email and the attachment to Lisa. 
Who is protected by the Safe attachment policy? 

Answer options:

A.Tom
B.Lisa
C.Both
D.None

Correct Answer: B 
Since the Safe attachment policy is applied to only the Sales department, only Lisa will be protected by the policy.
Option A is incorrect. Tom is not protected by the policy. When he forwards the mail and attachment to Lisa, the attachment will be handled by the policy before being delivered to Lisa.
Option C is incorrect. Only Lisa is protected by the policy.
Option D is incorrect. Lisa is protected by the policy.
Reference: 
To know more about Safe attachment policy, please refer to the link below: 

https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/safe-attachments?view=o365-worldwide