哪些是ChartWrapper类的图标类型（） A: Pie B: Polar C: Doughnut D: HeatMap

KFC sells Youtiao， a kind of Chinese doughnut， at its outlets in China。 The Youtiao is considered an important part of a Chinese breakfast menu。 In marketing terms， KFC is practicing a _____ strategy。（ ） A: positioning B: localization C: segmentation D: indigenous