During the deployment of a new system, the implementation team determines that APIs used to integrate the new system with a legacy system are not functioning properly. Further investigation shows there is a misconfigured encryption algorithm used to secure data transfers between' systems Which of the following should the project manager use to determine the source of the defined algorithm in use?

1. Code repositories
2. Security requirements traceability matrix
3. Software development life cycle
4. Roles matrix
5. Implementation guide