The states of hybridization of boron and oxygen atoms in boric acid $\left(\mathrm{H}_3 \mathrm{BO}_3\right)$ are respectively

• A

  $\mathrm{sp}^2$ and $\mathrm{sp}^2$
• B

  $\mathrm{sp}^3$ and $\mathrm{sp}^3$
• C

  $\mathrm{sp}^3$ and $\mathrm{sp}^2$
• Correct answer
  D

  $\mathrm{sp}^2$ and $\mathrm{sp}^3$

Hence, the correct answer is option: 'D'.