The Texas Supreme Court's Decision in Edgewood ISD V

The Texas Supreme Court's decision in Edgewood ISD v. Kirby was that

A) undue reliance upon property taxes to fund public education violated the Texas Constitution.
B) the state's property tax system for financing public education did not violate the Texas Constitution.
C) the state's property tax system for financing public education was not the issue in this case; the issue was dropout rate disparity between school districts.
D) the state's dropout rate warranted federal supervision of Texas's public schools until the Texas dropout rate approached the national average.
E) the Texas Education Agency had acted unconstitutionally by barring prayer in public schools.