In What Way Do the Three Change Management Environment Stages

Multiple Choice

In what way do the three change management environment stages work together to prevent a change being accidentally implemented?

A) The three stages are isolated from one another.
B) The same IT staff member works with the issue in all three stages to ensure error free completion.
C) Code flows through each stage and then is tested by the developer to ensure that it meets the user's requirements.
D) The three stages are symbolic of the iterative process.