$3.$ Customers $(2$ points$)$ a$)$ Marketing is about understanding consumers' needs and wants. Based on identified consumers' needs and wants, consumers can be grouped together $($i$.$c$.,$ segmentation$).$ Previous marketing research has identified four key consumer segments in markets around the world based on benefits sought. Which are these four consumer segments? b$)$ Toothpaste is available in a number of sizes, delivery systems, textures $($paste or gel$),$ and formulations $($See table $2$ in the Asia case$).$ For these two different types of consumers, think about which type$($s$)$ of toothpaste $($i$.$e$.,$ Stock keeping unit$)$ may be appealing. Consumer Size Delivery Texture Benefit Systems Family with Children Young single