Which command is used to create or update infrastructure in Terraform?

The command that is used to create or update infrastructure in Terraform is indeed the one that you selected. This command is specifically designed to execute the changes that have been defined in the Terraform configuration files. When executed, it reads the current state of the infrastructure, compares it with the desired state defined in the configuration, and proceeds to apply the necessary changes to match that desired state.

This implies that it not only creates new resources but also updates existing resources when changes are detected. The use of this command is essential in a workflow where adjustments to infrastructure need to be enacted following a planned change, ensuring that the current state matches the intended configuration.

The other options do not perform this function. For instance, one option refers to a command that generates an execution plan but does not actually apply any changes. Another option suggests deploying, which is not a valid Terraform command. The last option mentions building, which again does not pertain to Terraform's command set.