जटिल परियोजनाओं के नियोजन और नियंत्रण तथा ऐसी परियोजनाओं के लिए आवश्यक संसाधनों के शेड्यूलिंग के लिए निम्नलिखित में से कौन सी एक तकनीक है?

Who was the first to formalize the economic concept of the division of labor in his classic work 'The Wealth of Nations'?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Within the functional classification of an industrial undertaking, security activities are defined as those which encompass the protection of property and persons. Reason R: These activities are designed to ensure the safety of the organization's workforce and the preservation of its physical assets against potential hazards. In the light of the above statements, choose the most appropriate answer from the options given below: