Which of the Following Statements About the π Molecular Orbital

Multiple Choice

Which of the following statements about the π molecular orbital description of cyclobutadiene is not correct?

A) Cyclobutadiene has two degenerate nonbonding π molecular orbitals.
B) Cyclobutadiene has a single bonding π molecular orbital.
C) Cyclobutadiene has two electrons in nonbonding π molecular orbitals.
D) Cyclobutadiene has one electron in an antibonding π molecular orbital which makes it antiaromatic.
E) none of the above