A newspaper vendor was observed for a few weeks. He made a profit of $3000 on Sunday, $1000 on Wednesday and a loss of $1000 on the Saturday of the first week. In the next week and for the same days as the previous week, he made a turnover of $2000, $4000 and a loss of $2000. The final week, he made a loss of $1000 on the first two designated days and a profit of $3000 on the last day of observation. Which of the following characteristic polynomials relate to the above problem?

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