Under the "free exercise clause," which of the following is correct?

A) A state may not require children to salute the flag if by doing so the children would violate their religious beliefs.
B) Both the state and federal governments have the authority to pass legislation that permits the sacramental use of some hallucinogens.
C) The tax-exempt status may be denied to schools that practiced racial discrimination.
D) All of the above.
E) Government may tax all religious organizations.

D