Which recommendation best meets the requirements?

Your company has offices in Montreal and Seattle. Each office has 2,000 users. You are designing a Microsoft Exchange Server 2019 organization that will span both offices. You need to recommend a high-availability solution for mailbox databases. The solution must ensure that high availability is maintained if a single site fails.

Which recommendation best meets the requirements? More than one answer choice may achieve the goal. Select the BEST answer.
A . Deploy one database availability group (DAG) that has one node in each office
B . Deploy a Mailbox server to a Hyper-V host and use Hyper-V replication
C . In each office, deploy one database availability group (DAG) that has two nodes
D . Deploy one database availability group (DAG) that has two nodes in each office

Answer: D