D , because liability means to be responsible for something, especially by law.
A handicap that limits a persons movement, senses, or activity. It puts them at a disadvantage compared to others and is recognized by the law.<span />
The Scientific management in the modern era is management that analyzes and synthesizes workflows.
The role of Scientific management in the modern era is improving economic efficiency, especially in the labor productivity. It is a systematic approach to handle management problems. It implies scientific techniques in method of work, recruitment, selection and training of workers.
Scientific management in the modern era is helped in the enhanced production. The employees perform repetitive tasks and are therefore easily controlled by the management.
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$396,200 + 61,250 + 27,600+ 9,000+ = 479,000 dollars