Which of the following shows correct range of conductivity?

(i) Conductors : ${10}^4\text{ to }{10}^7{\mathrm{ohm}}^{-1}{\mathrm{m}}^{-1}$

(ii) Insulators : ${10}^{-6}\text{ to }{10}^4{\mathrm{ohm}}^{-1}{\mathrm{m}}^{-1}$

(iii) Semiconductors : ${10}^{-10}\text{ to }{10}^{-6}{\mathrm{ohm}}^{-1}{\mathrm{m}}^{-1}$

• A

  (i) and (ii) only

• B

  (i) only

• C

  (ii) and (iii) only

• D

  (i), (ii) and (iii)