After understanding the assertion and reason, choose the correct option.
Assertion : In the bonding molecular orbital $(MO)$ of $H_2,$ electron density is increased between the nuclei.
Reason : The bonding $MO$ is $\psi_A + \psi_B,$ which shows destructive interference of the combining electron waves.

• A
  Assertion is incorrect, reason is correct.
• B
  Assertion is correct, reason is incorrect.
• C
  Assertion and reason are correct and reason is the correct explanation for the assertion.
• D
  Assertion and reason are correct, but reason is not the correct explanation for the assertion.