Which of the Following Is TRUE Regarding Stereoisomers

Which of the following is TRUE regarding stereoisomers?

A) Stereoisomers differ in the way atoms are connected but have identical spatial orientation of atoms. They can be conformational or configurational.
B) Stereoisomers differ in the way atoms are connected but have identical spatial orientation of atoms. They can be constitutional or configurational.
C) Stereoisomers have the same atom connectivity but have different spatial orientation of atoms. They can be constitutional or enantiomeric.
D) Stereoisomers have the same atom connectivity but have different spatial orientation of atoms. They can be conformational or configurational.
E) Stereoisomers have the same atom connectivity but have different functional groups on the same positions of the carbon backbone. They can be conformational or configurational.