If Net income is $ 25000, and sales revenues is $ 170000, and cost of goods sold is $ 130000. Then, based on these information, the gross profit and operating expenses are (assume that other income and expenses were zero) Select one: O a. Gross profit $ 60000; operating expenses $ 25000 O b. Gross profit $ 50000; operating expenses $ 20000 O c. Gross profit $ 40000; operating expenses $ 15000 d. Gross profit $ 30000; operating expenses $ 10000