Common-Size Income Statements and Horizontal Analysis Income statements for Mariners Corp, for the past two years are as follows: Required: 1. Using the format in Example 13-5, prepare common-size comparative income statements for the two years for Mariners Corp. Round percentages to one decimal point. 2. Based on Mariner's common size statements in 2016 compared to 2015 , lt can be concluded that a. all pf these are truc. b. gross profit as a percentage of sales declined due to higher cost of goods sold. c. net income decreased both in dollars and as a percentage of sales. d. selling and administratlve expenses increased both in dollars as well as percentage of sales. 3. Using the format in Example 13-2, prepare comparative income statements for Mariners Corp., inclu whale percent. If an answer is zera, enter " 0 ". 4. When comparing 2016 with 2015 , largest percentage changes accurred in the case of a. selling and administratlve expenses, and income tax expense. b. sales revenue and cost of goods sold. c. cost of goods sold and interest expense. d. sales revenue and income tax expense