Which of the following principles are related to scientific management? (A) Science not Rule of Thumb (B) Development of Each and Every Person to His or Her Greatest Efficiency and Prosperity (C) Unity of Command (D) Cooperation, Not Individualism Choose the correct answer from the options given below:

Option 1 -> (A), (B) and (D) only - Includes Science not Rule of Thumb, Development of Workers, and Cooperation which are core Taylor's principles, excluding Unity of Command which belongs to Fayol. Option 2 -> (A), (B) and (C) only - Incorrectly includes Unity of Command (Fayol's principle) while excluding Cooperation, Not Individualism (Taylor's principle). Option 3 -> (A), (B), (C) and (D) - Incorrectly includes Unity of Command which is not a scientific management principle but belongs to Fayol's administrative management. Option 4 -> (B), (C) and (D) only - Incorrectly includes Unity of Command and excludes Science not Rule of Thumb, which is the foundational first principle of scientific management. Hence, Option 1: (A), (B) and (D) only -> Frederick Taylor's Scientific Management includes four main principles: Science not Rule of Thumb (A), Harmony/Cooperation not Individualism (D), Development of Each Person to Greatest Efficiency (B), and Mental Revolution. Unity of Command (C) is Henri Fayol's administrative principle, not part of Taylor's scientific management. -> correct