HashiCorp Certified: Terraform Associate (003) TA-003 — Question 82

A fellow developer on your team is asking for some help in refactoring their Terraform code. As part of their application's architecture, they are going to tear down an existing deployment managed by Terraform and deploy new. However, there is a server resource named aws_instance.ubuntu[1] they would like to keep to perform some additional analysis. What command should be used to tell Terraform to no longer manage the resource?