According to the discussion on "Expanding our Definition of Entrepreneurship" Carnegie of (Carnegie Steel), and Ford (of Ford Motorcars) grew wealthy by applying what below to their companies? Group of answer choices Return on Assets efficiency: Ensuring every $1 invested in the business returned a minimum of $20 net profit Scalable Efficiency: Organizing all work / tasks in a specific orderly manner Payroll Efficiency: Make jobs attractive by offering benefits and solid wages Supply chain Efficiency: Controlling all aspects of the supply chain to ensure low cost of goods on raw materials