A SysOps Administrator receives a connection timeout error when attempting to connect to an Amazon EC2 instance from a home network using SSH. The Administrator was able to connect to this EC2 instance using from their office network in the past.
What caused the connection to time out?

A. The IAM role associated with the EC2 instance does not allow SSH connections from the home network.
B. The public key used by SSH located on the Administrator’s server does not have the required permissions.
C. The route table contains a route that sends 0.0.0.0/0 to the internet gateway for the VPC.
D. The security group is not allowing inbound traffic from the home network on the SSH port.