In its April Year 1 production, Hern Corp., which does not use a standard cost system, incurred total production costs of $900,000, of which Hern attributed $60,000 to normal spoilage and $30,000 to abnormal spoilage. Hern should account for this spoilage as: - period cost of $90,000 - inventoriable cost of $90,000 -period cost of $60,000 and inventoriable cost of $30,000 - inventoriable cost of $60,000 and period cost of $30,000