Question content area top Part $1$ Consider the simplex tableau given below. x $1$ x $2$ s $1$ s $2$ s $3$ P $4120006103100110010105$ negative $60$ negative $20014$ Question content area bottom Part $1($A$)$ The pivot element is located in column enter your response here and row enter your response here. Part $2($B$)$ The entering variable is enter your response here. Part $3($C$)$ The exiting variable is enter your response here Part $4($D$)$ Enter the values after one pivot operation in the tableau below. x $1$ x $2$ s $1$ s $2$ s $3$ P $10\mathrm{.}250\mathrm{.}50001\mathrm{.}50$ negative $0\mathrm{.}252\mathrm{.}51009\mathrm{.}5001010501\mathrm{.}51001$ enter your response here $($Type an integer or a decimal.$)($C$)$ Which of the following is$$ true?

The optimal solution has been found.

The problem has no optimal solution.