Answer:
The correct answer is : Oppenheimer was perceived as an expert and trustworthy source of information, unlike Pravda
Explanation:
Oppenheimer is well known as "the father of the atomic bomb". What helps and tells that this person is very reliable is because he was the director of the Los Alamos Laboratory, selected to administer and carry out the famous Manhattan Project. Besides he gave an important contribution to quantum molecular theory.
Answer: Principle of motion economy.
Explanation: principle of motion economy developed by Frank and Lillian Gilbreth are guidelines to help determine the work method, workplace layout, tools, and equipment.
The aim of this is to help in identifying and replicating one best way to complete a task and also minimize the physical and perceptual loads imposed on people engaged in that task.
