What should you do?

You have a Microsoft Exchange Online tenant named contoso.com.

You create a partnership with two other companies named fabhkam.com and wingtiptoys.com. All the mailboxes of fabnkam.com are hosted in Microsoft 365. All the mailboxes of wingtiptoys.com are hosted in an on-premises Exchange Server 2019 organization.

You need to ensure that all the email messages sent from contoso.com to fabrikam.com and wingtiptoys.com is encrypted by using TLS.

What should you do?
A . Configure one connector.
B . Create an organizational relationship.
C . Create two remote domains.
D . Run the Office 365 Exchange Hybrid Configuration wizard.
E . Configure two mail flow rules.

Answer: A

Explanation:

References: https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/use-connectors-to-configure-mail-flow/set-up-connectors-for-secure-mail-flow-with-a-partner