The Authors Cite Reasons as to Why the Texas Court

The authors cite reasons as to why the Texas court system is more confusing than it needs to be. Which of the following is a contributor to this confusion?

A) the jurisdiction of Texas courts
B) the involvement of the U.S. Supreme Court in most Texas judicial rulings
C) the fact that no changes or updates to the system have been made since the original Texas Constitution was written
D) the difficult requirements to serve as a judge or justice
E) the wide variation in costs to file claims in Texas courts