For k-means clustering, what will be the cluster centroids for the following 2 clusters?
C1: (3,5),(5,4), (4,6)
C2: (6,0),(8,1), (7,2)
a) (4.0, 5.0) and (7.0, 1.0)
b) (4.0, 5.0) and (6.0, 1.0)
c) (5.0, 5.0) and (7.0, 1.0)
d) (4.0, 4.0) and (7.0, 2.0)