Examine the data tabulation titled "Tax Collection" from IRAS and Department of Stat Singapore, download and study the article titled "Roadmap Laid Out for Tax Reform' Bangkok Post Business dated 3 November 2015, and answer the following questions: a) Identify the three (3) largest types of tax contributors to Singapore's total tax re collection and compute their combined percentage contribution to Singapore's to revenue collection from FY2010/11 to FY2014/15. (13 n b) Identify Singapore government's five (5) main objectives in setting tax policies