The weighted$-$factor scoring model is a very handy tool to make decisions, especially when it is not easy to quantify all the factors $($e$.$g$.,$ service$).$ For example, you can apply it to select suppliers. Suppose a company using a weighted criteria evaluation system has established these $3$ categories and the appropriate weight in parentheses: Quality $(0\mathrm{.}30),$ Delivery $(0\mathrm{.}40),$ and Cost $(0\mathrm{.}30).$

The scores for each category are shown below. Which of the following supplier has the highest total score?

upplier A: Quality $(90),$ Delivery $(85),$ Cost $(60)$

Supplier C: Quality $(80),$ Delivery $(80),$ Cost $(70)$

All suppliers scored the same.

Supplier B: Quality $(70),$ Delivery $(95),$ Cost $(60)$