When determining the leaving variable in transportation model, you obtain the following values for variables x$11,$ x$22$ and x$34$ : x$11=10$ x$22=15$ x$34=10$ Which of the above variables is the leaving variable?Your answer: x$22$ is the leaving variable. Either x$11$ or x$34$ is the leaving variable. Both x$22$ and x$34$ are the leaving variables.