5. Please study the income statement of "Advanced Tech Inc." Income Statements For the Years Ended Dec. 31, 2019 and 2018 YEAR 2019 2018 Net sales $174,000 $167,000 COGS 115,000 114,000 Gross profit 60,000 52,000 General and administrative expenses 54,000 46,000 Operating profit 6,000 6,000 Interest expense 1,000 1,000 Earnings before taxes 5,000 5,000 2,000 2,000 Income taxes Net income 3,000 3,000 id the gross profit margin improve from 2018 to 2019? No, from 34.5% dropped to 31% Yes, from 31% rise to 34% Yes, from 27.5% increases to 31% None of above