Which statement best describes the unsupervised learning process when performing clustering?
A. Data points are compared iteratively and the distances between each other are used to determine whether they belong in the same cluster or not.
B. A neural network is deployed in unsupervised mode to determine to which cluster a data point belongs.
C. A human supervisor decides which data points belong to which clusters.
D. Examples of data points and their associated cluster are fed into the system allowing it to learn and generalize for the rest of the data set.
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