Mrs$.$ DT wants to expand her production capacity by purchasing a new machine. The alternative set has been narrowed to three potential machines: K$,$ Y$,$ Q$.$ The table shows the performance values of the machines and the importance of the attributes $(10$ shows the highest importance$).$ The scale used for scoring is $1($the worst$)$ through $5($the best$).$ A: Which alternative is the most appropriate one for Mrs$.$ DT$?$ Use weights instead of $$importance$!$B: Conduct a sensitivity analysis about the weight change interval between Price and Delivery.