A shirt production company has tracked their sales of red and blue shirts over the past few years. The graph of both is shown below. Red and Blue Shirt Sales 400 350 300 250 200 150 100 50 0 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 -Red -Blue Which of the following is a true statement about the trends in sales? Sales of blue shirts are trending upward from 2014 to 2017. Sales of blue shirts are always higher than those of red shirts. O Red shirt sales show an increasing trend. Sales of red shirts are less than those of blue shirts in all the years before 2012. O Sales of red shirts are always higher than those of blue shirts