Which of the following is untrue about the Unweighted Pair Group Method Using Arithmetic Average?

• A. The simplest clustering method is UPGMA, which builds a tree by a sequential clustering method
• B. Given a distance matrix, it starts by grouping two taxa with the largest pairwise distance in the distance matrix
• C. The distances between this new composite taxon and all remaining taxa are calculated to create a reduced matrix
• D. The grouping process is repeated and another newly reduced matrix is created