Ortega Interiors provides design services to residential and commercial clients. The residential services produce a contribution margin of $470,000 and have traceable fixed operating costs of $500,000. Management is studying whether to drop the residential operation. If closed, the fixed operating costs will fall by $390,000 and Ortega's income will: O decrease by $80,000. Oincrease by $30.000. O increase by $80,000. O increase by $360,000. O decrease by $360,000