Resource Specialization (25pts). It turns out that both methods proposed in Question 2 are not satisfactory at some key dimension. Therefore, you consulted course instructor Dr. Ren and got a hint: can we add a new resource (with 1 unit) that can take the easy part of the job of our bottleneck resource (e.g., hair wash)? Please (i) describe what this method is in detail in this specific business setting; (ii) compare this new method with the two methods in Question 2 to explain its advantages