In the Lemon v. Kurtzman decision of 1971, the Supreme Court ruled that
A) any aid of any sort to church-related schools is not constitutional, because it violates church-state separation.
B) aid to church-related schools is fully constitutional, and can be used for any purposes needed by the schools.
C) spoken prayers in public schools were unconstitutional.
D) aid to church-related schools must be for secular purposes only, and cannot be used to advance or inhibit religion.
E) devotional Bible-reading in public schools was unconstitutional.
Answer: D