Please help with this clustering question

For a dataset with five observations, the Euclidean distances between the observations are shown in the following table: Observation 2 3 4 AWN 10 4 2 w 8 6 (a) Perform hierarchical clustering with single linkage and create the corresponding dendrogram. How many clusters are identified if the dendrogram is cut at the height of 3.5? (b) Perform hierarchical clustering with complete linkage and create the corresponding dendrogram. How many clusters are identified if the dendrogram is cut at the height of 6.0