What aspect is most focused on by the 8 Wastes of Lean?

The aspect most focused on by the 8 Wastes of Lean is the elimination of inefficiencies and wastes in processes. Lean methodology is fundamentally concerned with identifying and removing non-value-added activities, which are considered wastes. These wastes can manifest in various forms, such as overproduction, waiting times, transportation inefficiencies, excessive processing, inventory, unnecessary motion, defects, and unused talent.

By specifically addressing these types of waste, organizations can streamline their processes, improve productivity, and enhance overall operational efficiency. This focus on waste reduction allows companies to provide greater value to their customers while also optimizing their resource use and minimizing costs. Thus, eliminating inefficiencies and waste is at the heart of lean principles, making it the correct answer in this context.