The graph of molar conductivity versus ${\mathrm{C}}^{1/2}$ is plotted. Which type of electrolyte are used in A and B ?
 

• A

  A - Weak electrolyte
  B - Strong electrolyte

• B

  A - Strong electrolyte
  B - Weak electrolyte

• C

  A - Weak electrolyte
  B - Weak electrolyte

• D

  A - Strong electrolyte
  B - Strong electrolyte