In which of the following cases will K-means clustering fail to give good results? 1) Data points with outliers 2) Data points with different densities 3) Data points with nonconvex shapes

In which of the following cases will K-means clustering fail to give g

1.	In which of the following cases will K-means clustering fail to give good results? 1) Data points with outliers 2) Data points with different densities 3) Data points with nonconvex shapes
A.	1 and 2
B.	2 and 3
C.	1, 2, and 3??
D.	1 and 3
Answer» D. 1 and 3