Observe the following statements i. The dipole moment of $\mathrm{NH}_3$ is higher than the dipole moment of $\mathrm{NF}_3$. ii. The dipole moment of chloroform is zero. iii. Covalent bond character in $\mathrm{NaCl}$ is more compared to $\mathrm{CuCl}$.

• A

  i, iii
• Correct answer
  B

  ii, iii
• C

  i, ii, iii
• D

  i, ii

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