Respuesta :
In the above scenario, the project management tool that Ronald is using to plan his schedule is the Gantt Chart technique.
What is a Gantt chart?
A Gantt chart is a variety of bar chart that flesh out a work or the project schedule, named after its communicator, Henry Gantt, who create mentally such a chart approximately in the years 1910–1915.
Modern Gantt charts as well show the dependence kinships between human action or activities and the current schedule position.
In the given situation, Ronald is an operation manager that is engaged in the manufacturing business. He prepares the list of the production process, and plans to prepare the table, then he is using a technique of Gantt chart.
Therefore, option D is correct.
Learn more about the Gantt chart, refer to:
https://brainly.com/question/13605073