I would go with "D", either "A" or "B" but for both.
Well, these guys keep getting linked because it seems like a grotesque inversion of justice. Libby really shouldn’t have faced criminal charges in the first place. Berger’s admitted acts are clear violations of law, meriting at least some jail time.
The courts aren’t perfect, and will occasionally yeild perverse results. But, the system only works at all because people trust in the integrity of the system. If enough people stop trusting that justice is at least possible, bad things start to happen.