What is the test for a demurrer to a complaint?

When a demurrer to a complaint is sustained without leave to amend, "we decide whether there is a reasonable possibility that the defect can be cured by amendment: if it can be, the trial court has abused its discretion and we reverse; if not, there has been no abuse of discretion and we affirm. [Citations.] The burden of proving such reasonable possibility is squarely on the plaintiff." ( Blank v. Kirwan , supra , 39 Cal.3d at p. 318, 216 Cal.Rptr. 718, 703 P.2d 58.) "While such a showing can be made for the first time to the reviewing court [citation], it must be made." (

[222 Cal.Rptr.3d 408]