Answer:
A. Act Again
Step-by-step explanation:
In business, tracking a progress is made to ensure that you make a constant improvement within your operation.
During the observation process, you'll notify the things that can either become a hindrance or improvement to your operation. During the adjustment process, you'll eliminate the hindrance and add the things that can become the improvement into the plan.
After both of these were done, you need to act to execute the plan and check the progress again. This will form a cycle that you need to do throughout the operation.