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(C) In the given circuit,all three inductors of $3\;H$ each are connected in parallel between points $A$ and $D$.Since the terminals of all three indu

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(C) In the given circuit,all three inductors of $3\;H$ each are connected in parallel between points $A$ and $D$.Since the terminals of all three inductors are connected to the same two nodes $A$ and $D$,they are in a parallel configuration.The equivalent inductance $L_{eq}$ for inductors in parallel is given by the formula:$\frac{1}{L_{eq}} = \frac{1}{L_1} + \frac{1}{L_2} + \frac{1}{L_3}$Substituting the values $L_1 = L_2 = L_3 = 3\;H$:$\frac{1}{L_{eq}} = \frac{1}{3} + \frac{1}{3} + \frac{1}{3} = \frac{3}{3} = 1\;H^{-1}$Therefore,$L_{eq} = 1\;H$.

The inductance between $A$ and $D$ is

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