An Application Running on an Amazon EC2 Instance in VPC-A

An application running on an Amazon EC2 instance in VPC-A needs to access files in another EC2 instance in VPC-B. Both are in separate. AWS accounts. The network administrator needs to design a solution to enable secure access to EC2 instance in VPC-B from VPC-A. The connectivity should not have a single point of failure or bandwidth concerns. Which solution will meet these requirements?

A) Set up a VPC peering connection between VPC-A and VPC-B.
B) Set up VPC gateway endpoints for the EC2 instance running in VPC-B.
C) Attach a virtual private gateway to VPC-B and enable routing from VPC-A.
D) Create a private virtual interface (VIF) for the EC2 instance running in VPC-B and add appropriate routes from VPC-B.