Following figure shows dependence of molar conductance of two electrolytes on concentration. $\mathrm{\Lambda }\stackrel{\mathrm{o}}{\mathrm{m}}$ is the limiting molar conductivity.

The number of incorrect statement(s) from the following is _______
A) $\mathrm{\Lambda }\stackrel{\mathrm{o}}{\mathrm{m}}$ for electrolyte A is obtained by extrapolation
B) For electrolyte B, $\wedge \mathrm{m}$ vs $\sqrt{\mathrm{c}}$ graph is a straight line with intercept equal to $\mathrm{\Lambda }\stackrel{\mathrm{o}}{\mathrm{m}}$
C) At infinite dilution, the value of degree of dissociation approaches zero for electrolyte B.
D) $\mathrm{\Lambda }\stackrel{\mathrm{o}}{\mathrm{m}}$ for any electrolyte A or B can be calculated using ${\mathrm{\lambda }}^{\mathrm{o}}$ for individual ions.