Your company uses Microsoft Teams for collaboration and communication.

You have a team named Research that contains internal and external members.

A data loss prevention $($DLP$)$ policy named Policy$1$ is applied to the Research team. Policy$1$ blocks guest users from accessing sensitive data.

You receive a report that a guest user accessed a sensitive file stored in the Research team. You review Policy$1$ and validate that the policy is enabled and applied to only the Teams chat and channel messages location.

You need to ensure that guest users cannot access sensitive data from the Research team.

Which two configurations should you perform in Policy$1?$