SRE and DevOps fundamentals sample question with answer 76

Question:
Which of the following explains the concept of containers?

1. Containers are applications that orchestrate the deployment of virtual systems
2. Containers are virtualized applications that can be shipped from server to server as needed
3. Containers are iterative backups that can be rapidly deployed in case of system failure
4. Containers are stand-alone software packages that contain runtime components to function independently

Answer:
D - is the correct answer