How has the Attorney General dealt with a defendant's challenge to the restitution fine?

The Attorney General first responds that defendant forfeited his challenge to the restitution fine by failing to object below. (See People v. Scott (1994) 9 Cal.4th 331, 353 [waiver doctrine applies to challenges to trial court's failure to properly make or articulate discretionary sentencing choices].) To the extent defendant's challenge is to the trial court's decision to multiply the base fine by the number of years of imprisonment, we agree with the Attorney General that the challenge is to the court's failure to articulate its sentencing choices, and the issue is therefore waived.