What is a common benefit of using Docker in software delivery?

Using Docker enhances environment consistency across development and production, which is one of its primary advantages. When developers use containers to package their applications along with all necessary dependencies and configurations, they create an isolated environment that mirrors production settings. This consistency helps to mitigate issues that arise from differences in operating systems, library versions, or configurations when moving applications from development to production.

By ensuring that the environment in which the code runs is the same throughout the development lifecycle, Docker helps in replicating the production environment during testing and development. This reduces the risk of "it works on my machine" scenarios, thereby streamlining the deployment process and making it more predictable.

Other choices may address important aspects of software development, but they do not capture the essence of the main benefit Docker provides in terms of consistent environments. Reducing code complexity or improving security can be side effects of using containers but are not direct benefits unique to Docker's environment management. Additionally, while Docker can help mitigate bugs related to environment differences, it cannot eliminate all bugs in an application, as bugs can arise from several other factors unrelated to the containerization process.