Which of the Following Statements About Ap* Antibonding Molecular Orbital

Which of the following statements about ap* antibonding molecular orbital is true?

A) Ap* antibonding molecular orbital is formed when twop orbitals of similar phase overlap.
B) Both the statements ap* antibonding molecular orbital is formed when twop orbitals of opposite phase overlap and ap* antibonding molecular orbital is a higher-energy molecular orbital than ap bonding molecular orbital are true.
C) Ap* antibonding molecular orbital is formed when twop orbitals of opposite phase overlap.
D) Ap* antibonding molecular orbital is a higher-energy molecular orbital than ap bonding molecular orbital.