Exercise 9-21 (Algorithmic) (LO. 5) Cindy maintains an office in her home that comprises 28% (340 square feet) of total floor space. Gross income for her business is S45.650. and her residence expenses are as follows: Real property taxes Interest on mortgage Operating expenses Depreciation (based on 28% business use) If required, round your final answer to the nearest dollar What is Cindy's office in the home deduction based on: $3,324 5,540 2,770 1,355 a. The regular method? b. The simplified method