Q. which of the following cases will K-Means clustering give poor results?
1. Data points with outliers
2. Data points with different densities
3. Data points with round shapes
4. Data points with non-convex shapes

• (A) 1 and 2
• (B) 2 and 3
• (C) 2 and 4
• (D) 1, 2 and 4