If you choose False, please correct the sentence or write down the reason. If you choose True, you do not need to provide any reasons. 20. 21. 22. 23. 24. 25. [2 points) If a Linear Optimization problem has multiple optimal solutions, then there are in- nitely many of them. A. True B. False [2 points) A Linear Optimization problem that has an unbounded region may have an optimal solution. A. True B. False [2 points) In R, lm() function is used for estimate linear regeression model. glmO function is used for estimate clustering model. A. True B. False [2 points) X = (0,1,1,0,U),Y = [1,0,0,1,0). The euclidean distance between X and Y is v/g. A. True B. False [2 points) Suppose you are running the Hierarchical clustering algorithm with 180 observations. There are 1 cluster at the start of the algorithm, and there are 180 clusters at the end of the algorithm. A. True B. False [2 points) The R code for Hierarchical clustering is \"Name of Cluster = kmeans(Data, Number of Clusters)\". A. True B. False