If net sales at Kelly's Bakery increased from $40,000 to $60,000 and its cost of goods sold increased from $20,000 to $40,000, then vertical analysis based on net sales would show the following percentages for each year for cost of goods sold (rounded to the nearest percent): Select one: , 33% and 50% O B. 67% and 40% C. 40% and 20% D. 50% and 67% O E 10% and 30%