Diborane reacts with carbon monoxide to form

• A

  ${\mathrm{BH}}_3.\mathrm{CO}$

• B

  ${\mathrm{B}}_3{\mathrm{N}}_3{\mathrm{H}}_6$

• C

  ${\mathrm{H}}_3{\mathrm{BO}}_3$

• D

  ${\mathrm{BH}}_3.{\mathrm{CO}}_2$