Respuesta :
Answer: B. Program Evaluation and Review Technique (PERT)
Explanation:
Based on the information given, the project management tool that Harold is using is the Program Evaluation and Review Technique (PERT).
Project Evaluation Review Technique is used to determine the time that it'll take to complete a task. It is vital in scheduling of tasks.
Since Harold schedule and manage the steps of the manufacturing process by using a project management tool, the tool used is program evaluation and review technique.