Q$\mathrm{.}6$ Set. $($A$)$ Eagle Electronics must expand its supplier base. The search has been narrowed down to four suppliers: D$,$ C$,$ B$,$ and A$.$ The factors, weights, and ratings are given in the following table:

Ratings

i Factor Weight $($wi$)$ D C B A

$1$ Quality $285445$

$2$ Capacity $232341$

$3$ Delivery $182334$

$4$ Taxes $132554$

$5$ Environmental

Impact $185433$

a$)$ Using the weighted point plan, determine the recommended supplier

b$)$ Determine the recommended supplier if the weights of quality and taxes interchange?