The Supreme Court's Decisions in Van Orden V

The Supreme Court's decisions in Van Orden v.Perry and McCreary v.ACLU illustrate that:

A) the issue of government-sponsored displays of religious symbols has not yet been definitively settled
B) there are different opinions about whether the establishment clause should apply to state governments as well as to the federal government
C) the free exercise clause has still not been incorporated through the Fourteenth Amendment
D) the Lemon test does not apply to cases involving school prayer
E) the government will never be allowed to display any kind of religious symbols anywhere on government property