Bob owns and operates a mechanics workshop. During the year ended 30 June 2021 he incurred the following expenditure: 15 July 2020 Replace window broken during a robbery $1,700 1 December 2020 Paid 12 month insurance premium on work van $800 10 February 2021 Repaint exterior signage defaced by vandals $1,400 18 March 2021 Replace broken hydraulics on car hoist $2,600 Extend concrete customer car park to make four new 1 April 2021 $12,600 spaces The total tax deductions available to Bob for the year ended 30 June 2021 are (to the nearest dollar): a. $6,736 b. $5,900 c. $19,100 d. $6,500 e. $6,033