Solve the following LP graphically. Max $70$X$2$ Subject to constraints: $2$X$1+4$X$2126$X$1+4$X$224$ X$120,$ X$2$ z$0$Which of the following statements is the MOST accurate? Is zero in the optimal solution. The optimal solution value is $399$ and X$1=80$ in the optimal solutionO The slack variable for $2$X$1+4$X$212$ is equal to $8$ in the optimal solution. The optimal solution value is $410$ The optimal solution value is $210$ and the slack variable for $2$X$1+4$X$212$ is zero in the optimal solution.