$3.$ Define the four main segmentation bases and list at least two segmentation variables for each. What benefits do consumers seek online? Why would an e$-$marketer choose to use competitor positioning? Integrator positioning? How might an online company react if a rival embarks on competitor positioning in an unflattering way? Give an example of a company that is actively involved in S$-$T$-$P $($segmentation $-$targeting$-$ positioning$)$ practices as a part of their online strategy