Which of the Following Statements About a P-Bonding Molecular Orbital

Which of the following statements about a p-bonding molecular orbital is true?

A) A p-bonding molecular orbital is formed when two p orbitals of similar phase overlap.
B) A p-bonding molecular orbital is lower in energy than a s-bonding molecular orbital.
C) A p-bonding molecular orbital is formed when two p orbitals of opposite phase overlap.
D) Both the statements a p-bonding molecular orbital is formed when two p orbitals of similar phase overlap and a p-bonding molecular orbital is lower in energy than a s-bonding molecular orbital are true.