Suppose the sales S (in billions of dollars per year) for Proctor & Gamble for the years 1999 through 2004 can be modeled by $S = 2.5931 t ^ { 2 } - 1.5682 t + 39.831,1999 \leq t \leq 2004$ where t represents the year. During which year were the sales increasing at the lowest rate?
A)Sales are increasing at the lowest rate in the year 2004.
B)Sales are increasing at the lowest rate in the year 1999.
C)Sales are increasing at the lowest rate in the year 2000.
D)Sales are increasing at the lowest rate in the year 2002.
E)Sales are increasing at the lowest rate in the year 2001.

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The Answer of Suppose the sales S (in billions of dollars per year) for Proctor & Gamble for the years 1999 through 2004 can be modeled by $S = 2.5931 t ^ { 2 } - 1.5682 t + 39.831,1999 \leq t \leq 2004$ where t represents the year. During which year were the sales increasing at the lowest rate?
A)Sales are increasing at the lowest rate in the year 2004.
B)Sales are increasing at the lowest rate in the year 1999.
C)Sales are increasing at the lowest rate in the year 2000.
D)Sales are increasing at the lowest rate in the year 2002.
E)Sales are increasing at the lowest rate in the year 2001.

Suppose the Sales S (In Billions of Dollars Per Year) S=2.5931t2−1.5682t+39.831,1999≤t≤2004S = 2.5931 t ^ { 2 } - 1.5682 t + 39.831,1999 \leq t \leq 2004S=2.5931t2−1.5682t+39.831,1999≤t≤2004

Suppose the Sales S (In Billions of Dollars Per Year) $S = 2.5931 t ^ { 2 } - 1.5682 t + 39.831,1999 \leq t \leq 2004$