Steps to solve problem:
1) Use the SELECT tool to drop "Weekly Sales" and "Store Volume" columns
2) Use the FILTER tool to choose rows where [Region] equals South by using the Basic Filter.
3) Use the SORT tool do sort TransInYear in Descending order (highest Transactions average first). ATTENTION: The T (True) output from the Filter tool should be connected to the Sort tool, not the F (False).
4) Use the SAMPLE tool to select "First N rows" sample type and set N = 5.
5) Run the Workflow and compare your Sample tool output with the Final state results.