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Which of the following code blocks returns all unique values of column storeId in DataFrame...

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Which of the following code blocks returns all unique values of column storeId in DataFrame transactionsDf?

A.

transactionsDf["storeId"].distinct()

B.

transactionsDf.select("storeId").distinct()

(Correct)

C.

transactionsDf.filter("storeId").distinct()

D.

transactionsDf.select(col("storeId").distinct())

E.

transactionsDf.distinct("storeId")

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