Here it is.

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Molar  conductivity  is defined as conductivity (k)per molar of the solution.

ᴧ0 =k/c
If C (concentration ) = 1mol/V
Then equation becomes
ᴧ0 =kV/1mole

At infinite dilution volume is very large so this results in very high molar conductivity at infinite dilution.
So at infinite dilution a strong acid or a weak acid are 100% dissociated
So  hydrochloric acid has  the highest molar conductivity  at infinite dilution because of small H⁺ and Cl^-
Acetic acid also has also very high molar conductivity due to 100% dissociation and small sized H+ ion  but acetate ions conductivity is lesser than that of Cl^-

Now in ionic compound NaCl and sodium acetate -molar conductivity increases because of the increase in volume and now ions have more space available to move around so mobility increases and conductivity also increases. However this mobility again depends on the size of the ions, so in NaCl -Na+  and Cl- are smaller in size as compare to acetate ions of sodium acetate. Hence  the molar conductivity of NaCl is higher than that of sodium acetate.

Answer is A