The correct answer is C) four-year universities greatly varies.
<em>The graph demonstrates that the cost at private and public four-year universities greatly varies.
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The graph shows the cost of post-secondary education in the state of Texas with information about the cycle 2012-2013. We see that the yearly cost of a public University in the state of Texas averages $20,000. But the graphic also shows that in the case of a private university in Texas, the yearly cost in these institutions elevates so much. They can cost almost 35,000 a year. Among public universities in Texas, we can find the University of Texas at Austin, the University of North Texas, Texas A&M University, and the University of Houston. Among the private universities, we find Baylor University at Waco and Texas Christian University at Fort Worth.
That is why the graph demonstrates that the cost at private and public four-year universities greatly varies.
