Fredrick Winslow Taylor, known as the father of scientific management, was primarily concerned with improving productivity and efficiency in the workplace. Therefore, the correct answer is a. making workers feel appreciated. Taylor's main focus was on optimizing work processes and standardizing procedures to increase output and reduce labor costs. His principles were built around time and motion studies, selecting and training workers, and providing incentives to motivate them to perform at their best. While Taylor's approach emphasized good management and the transformation of second-class workers into first-class workers, his primary objective was not necessarily to make workers feel appreciated, but rather to maximize efficiency and productivity within the organization.
