A subcontractor is selected for a covered state project but has not checked its current public works registration. What must be verified before bid or work?

Why A is correct

The best answer is: Verify current DIR registration. California public works has contractor and subcontractor registration requirements tied to bidding and performance. Private agreement cannot waive those statutory duties. The new fact pattern changes the setting, not the governing rule or management control. The other choices either skip a required step, apply a different rule, or fail to address the stated risk.