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Johnson & Johnson Corporation is leading medical technology company headquartered in New Brunswick, New Jersey, that trades on the New York Stock Exchange. Following are selected financial data for Johnson & Johnson for the period 2011 - 2015. 2011 2012 2013 2014 2015 Profit margin (%) 16 17 16 15 11 Retention ratio (%) 80 82 84.3 76.2 70.1 Asset Turnover (X) 0.8 0.8 0.8 0.8 0.7 Financial leverage (X) 1.5 1.5 1.5 1.5 1.8 Growth rate in sales(%) 0.15 9.0 14.5 4.2 4.2 (Data was assumed for practice) a. Calculate Johnson & Johnson's annual sustainable growth rate from 2011 - 2015 b. What growth management challenge did Johnson & Johnson face during these years? c. How did Johnson & Johnson deal with its growth management challenge