Colby Corporation has provided the following information: -Operating revenues from customers were $199,700. -Operating expenses for the store were $111,000. -Interest expense was $9,200. -Gain from the sale of plants and equipment was $3,300. -Dividend payments to Colby's stockholders were $7,700. -Income tax expense was $36,000. -Prepaid rent expense was $5,000. What is the amount of Colby's operating income (income from operations)? a. $88,700. b. $83,700. c. $92,000. d. $81,000.

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