Which of the following graphs represents the variation of molar conductance $(\Lambda_m)$ of an electrolyte with $\sqrt{C}$ for weak and strong electrolytes,respectively?

• A
  Weak electrolyte $\rightarrow (iv),$ Strong electrolyte $\rightarrow (v)$
• B
  Weak electrolyte $\rightarrow (ii),$ Strong electrolyte $\rightarrow (iv)$
• C
  Weak electrolyte $\rightarrow (i),$ Strong electrolyte $\rightarrow (ii)$
• D
  Weak electrolyte $\rightarrow (iii),$ Strong electrolyte $\rightarrow (ii)$