The conductivity of 0.001 M⁻¹ solution of CH3COOH is 3.905 × 10⁻⁵ cm⁻¹. Calculate:
(a) 7.8 M⁻¹
(b) 3.905 × 10⁻⁸ M⁻¹
(c) 3.905 × 10⁻⁵ M⁻¹
(d) 1.9525 × 10⁻² M⁻¹