The Litigation Involving Four Police Officers Accused of Beating Rodney

 The litigation involving four police officers accused of beating Rodney King illustrates the fact that 

A)  some defendants are tried in both state and federal courts. 
B)  some cases can be tried only in state courts. 
C)  civil rights cases can be tried only in federal courts. 
D)  one level of government can block the prosecutions of another. 
E)  cases cannot be appealed across the state and federal judiciary.