In the circuit shown, the diodes are ideal, the inductance is small, and $I_{0} \neq 0$. Which one of the following statements is true?
- $D_{1}$ conducts for greater than $180^{\circ}$ and $D_{2}$ conducts for greater than $180^{\circ}$.
- $D_{2}$ conducts for more than $180^{\circ}$ and $D_{1}$ conducts for $180^{\circ}$.
- $D_{1}$ conducts for $180^{\circ}$ and $D_{2}$ conducts for $180^{\circ}$.
- $D_{1}$ conducts for more than $180^{\circ}$ and $D_{2}$ conducts for $180^{\circ}$.