24. What is the designated recovery period in years for office furniture, fixtures, and equipment under the Alternative Depreciation System? a. 5 b. 7 c. 10 d. 12 e. None of the above 25. Vernie claims her father as a dependent. The father is 80 years old, and has good vision. The father's only source of gross income is some interest he earns from a savings account. The father's gross income threshold for purposes of having to file a tax return for 2022 is: a. $2,300. b. $2,900. c. $13,300. d. $1,150. e. $1,750