Suppose, the CEO of Speech Processing mentioned during their quarterly planning meeting: “The degree of loyalty may provide a business like ours with insightful information. Hard-core loyals can help identify our products’ strengths; split loyals can show us which brands are most competitive with its own; and by looking at customers who are shifting away from our brand, we can learn about marketing weaknesses and attempt to correct them.” Which segmentation approach is addressed by the CEO in the given case?