A. Configure the security groups that are associated with the EFS file systems to allow inbound access for the TCP protocol on the NFS port (TCP 2049) from all EC2 instances where the file systems are mounted.
B. Configure the security groups that are associated with the EFS file systems to allow outbound access for the TCP protocol on the NFS port (TCP 2049) from all EC2 instances where the file systems are mounted.
C. Configure the security groups that are associated with the EFS file systems to allow outbound access from the security group of the corresponding EC2 instances on the NFS port (TCP 2049).
D. Configure the security groups that are associated with the EC2 instances to allow inbound access to the EFS file systems on the NFS port (TCP 2049).
E. Configure the security groups that are associated with the EC2 instances to allow outbound access to the EFS file systems on the NFS port (TCP 2049).

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