You are running k-means clustering for k=2 on a dataset with a single feature. Using an initial Cluster A centroid of 4 and Cluster B centroid of 11, do two iterations of k-means clustering on a single feature dataset with features values = [1,4,6,11,21] to answer the following questions. (6 points total) (a) Which feature values belong to Cluster A after one iteration? (b) Which feature values belong to Cluster A after a second iteration? (c) Would you expect your assigned clusters to change if you were to do a third iteration of k- means? Why or why not? (d) What is the silhouette coefficient for the data point with feature value '6' after the 2nd iteration