${\text{AlCl}}_{\text{3}}$ in acidified aqueous solution form a complex ‘A’ in which hybridisation state of Al is ‘B’. What are A and B respectively?

• A

  ${\left[\text{Al}{\left({\text{H}}_{\text{2}}\text{O}\right)}_{\text{6}}\right]}^{3+},{\text{\hspace{0.17em}\hspace{0.17em}d}}^{\text{2}}{\text{sp}}^{\text{3}}$

• B

  ${\left[\text{Al}{\left({\text{H}}_{\text{2}}\text{O}\right)}_{\text{6}}\right]}^{3+},{\text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}sp}}^{\text{3}}{\text{d}}^{\text{2}}$

• C

  ${\left[\text{Al}{\left({\text{H}}_{\text{2}}\text{O}\right)}_{\text{6}}\right]}^{3+},{\text{\hspace{0.17em}\hspace{0.17em}sp}}^3$

• D

  ${\left[\text{Al}{\left({\text{H}}_{\text{2}}\text{O}\right)}_{\text{4}}\right]}^{3+},{\text{\hspace{0.17em}\hspace{0.17em}dsp}}^2$