A security engineer thinks the development team has been hard-coding sensitive environment variables in its code. Which of the following would BEST secure the company`s CI/CD pipeline? 

Answer options:

A. Utilizing a trusted secrets manager
B. Performing DAST on a weekly basis
C. Introducing the use of container orchestration
D. Deploying instance tagging

A

Reference: https://about.gitlab.com/blog/2021/04/09/demystifying-ci-cd-variables/