Using the optimization theory, analyze the following quotations:

The optimal number of traffic deaths in the United States is zero.

Any pollution is too much pollution.

We cannot pull US troops out of Afghanistan. We have committed so much already.

If Congress cuts out the International Space Station $($ISS$),$ we will have wasted all of the resources that we have already spent on it$.$ Therefore, we must continue funding the ISS.

Since JetGreen Airways has experienced a $25\%$ increase in its insurance premiums, the airline should increase the number of passengers it serves next quarter in order to spread the increase in premiums over a larger number of tickets.

You are interviewing three candidates for one sales job position. On the basis of your experience and insight, you believe Jane can sell $600$ units a day, Joe can sell $450$ units a day, and Joan can sell $400$ units a day. The daily salary each person is asking is as follows: Jane $$200$; Joe $$150$; and Joan $$100.$ How would you rank the three applicants?