Which of the Following Statements About Partisanship in the Texas

Which of the following statements about partisanship in the Texas legislature is correct?

A) Partisan rivalries have been high throughout the history of the Texas legislature.
B) Historically, partisanship has been rather low, but in recent years the legislature has moved into a more partisan era.
C) The legislature was divided by partisan bickering before the 1980s, but the conflict has decreased steadily since then.
D) The Texas Constitution was amended in 1986 to forbid partisanship from interfering with the legislative process.