Which of the Following Statements About π Molecular Orbitals Is/are

Multiple Choice

Which of the following statements about π molecular orbitals is/are correct?

A) π molecular orbitals are cylindrically symmetric.
B) Most of the electron density in a π molecular orbital is centered above and below the internuclear axis.
C) When two atoms are connected by a double bond, both of these bonds are π bonds.
D) Both statements B and C are correct.
E) Statements A, B, and C are all correct.