Please refer to the following data: Which of the following statements is a valid conclusion based on this data Profitability in 2014 took a dive us operating expenses increased by 30.8%. Profitability in 2014 improved greatly, as net income increased significantly as a percentage of sales. Net income in 2014 increased 12.6% over the prior year. Net income in 2014 went down because gross profit as a percentage of sales declined over the 2-year period