Which of the Following Statements Is Correct

Which of the following statements is correct?

A) Public schools must open their doors to after-school religious activities on the same basis as other after-school programs.
B) Prayers in public school assemblies that mention only "God" but no specific religion's deity can be upheld as constitutional.
C) Nonsectarian prayers at official public school graduations are permissible under the Constitution.
D) Prayers at public high school football games are permissible so long as the prayers are organized and led by students.
E) A prayer written on a public school auditorium wall, but not recited by students or faculty, is permitted under the First Amendment.