Selling. general, and administrative expenses were $80,000, net sales were $390,000, interest expense was $16.000: research and development expenses were $34,000, net cash provided by operating activities was $42,000; income tax expense was $10,000, cost of goods sold was $220,000. Operating income for the period was: Help Save & Exit Submit 07:12 Multiple Choice O $98,000 O O $56.000 o O $30.000 o C 10000