Problem: The principles of Manual Work have typically been broken down in which of the basic subdivisions? The principles of Manual Work have typically been broken down in which of the basic subdivisions? 1) The use of the power tools. 2) The arrangement and conditions of the raw materials, and 3) The design of factories and storage areas. 1) The use of the human body. 2) The arrangement and conditions of the workplace, and 3) The design of tools and equipment. 1) The use of robots. 2) The arrangement and working conditions of the administrative offices, and 3) Automation and the use of Artificial Intelligence (AI) interfaces. 1) The use of hybrid designs. 2) The number and proficiency of the employees, and 3) The design of manufactured products and services.