What should you do?

You need to establish network connectivity between three Virtual Private Cloud networks, Sales, Marketing, and Finance, so that users can access resources in all three VPCs. You configure VPC peering between the Sales VPC and the Finance VPC. You also configure VPC peering between the Marketing VPC and the Finance VPC. After you complete the configuration, some users cannot connect to resources in the Sales VPC and the Marketing VPC. You want to resolve the problem.

What should you do?
A . Configure VPC peering in a full mesh.
B. Alter the routing table to resolve the asymmetric route.
C. Create network tags to allow connectivity between all three VPCs.
D. Delete the legacy network and recreate it to allow transitive peering.

Answer: A

Explanation:

https://cloud.google.com/vpc/docs/using-vpc-peering