Which of the following isn_oi'true about clustering algorithms lselect only one answer]? Select one C a, Clustering is an example of unsuperVised learning 0 b In K means clustering, the criteria for determining the optimal number of clusters is clear and straight forward 0 c, Clustering seeks to maximize intraicluster {Within} similarity and minimize intercluster lbetween) similarity C d Kmeans clustering lS an example of a clustering algorithm A company is interested in understanding whether or not there are different 'types" of customers Within their customer base. They do not have an outcome in mind, but are looking for different kinds of customers based on characteristics such as age, music spend, movie spend, In this case, the most appropriate analytic technique is {select the best answer): Select one' a, Linear Regression O b Kmeans clustering Decision Tree 0 O O n d. Logistic Regression A model was built on a sample in which all of the values of the predictor xwhere between to and 15. The model is being used to make predictions in a sample in which all of the values of Kare between 20 and 30 This is an example of [only select one answer]7 Select one C a, Extrapolation C b Bootstrapping O c, Good model building practice 0 d Kmeans clustering