The question is asking to choose among the following choices that states the mechanism does Cork cambium use to protect the stem and in the choices, I would say that the answer would be Deposits of water in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens.
Get started with AWS Config. AWS Config is a service that enables you to assess, audit, and evaluate the configurations of your AWS resources. Config continuously monitors and records your AWS resource configurations and allows you to automate the evaluation of recorded configurations against desired configurations.
AWS hardware VPN. You can create an IPsec, hardware VPN connection between your VPC and your remote network. On the AWS side of the VPN connection, a virtual private gateway provides two VPN endpoints for automatic failover. You configure your customer gateway, which is the physical device or software application on the remote side of the VPN connection. For more information, see Adding a Hardware Virtual Private Gateway to Your VPC, and the Amazon VPC Network Administrator Guide.