Tammy acquired an automobile for $20,000 on July 1, 2013. She used the automobile partially for business purposes during the 2013-2016 period. The percentage of business use is as follows: 2013, 70%, 2014, 70%, 2015, 40%, 2016, 35%. The automobile is 5-year recovery property, and Tammy did not elect Sec. 179 expensing or bonus depreciation. a. Compute the MACRS depreciation deduction for 2013-2016 b. What amount of previously claimed depreciation deduction (if any) must Tammy recapture in 2016?