Given below are two statements : Statement I : $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ is a homoleptic complex whereas $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]^{+}$is a heteroleptic complex. Statement II : Complex $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ has only one kind of ligands but $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]^{+}$has more than one kind of ligands. In the light of the above statements, choose the correct answer from the options given below.

• A

  Both Statement I and Statement II are false
• B

  Statement I is true but Statement II is false
• C

  Statement I is false but Statement II is true
• Correct answer
  D

  Both Statement I and Statement II are true

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