A Container Running a Python Script Is Failing When It

A container running a Python script is failing when it reaches the integration testing phase of the CI/CD process. The code has been reviewed thoroughly and the build process works on this container and all other containers pass unit and integration testing. What should be verified to resolve the issue?

A) that the correct port is exposed in the Dockerfile
B) that the necessary modules and packages are installed on build
C) that the script is running from the night directory
D) that the Python version of the container image is correct