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Which of the following code blocks performs an inner join between DataFrame itemsDf and DataFrame...

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Which of the following code blocks performs an inner join between DataFrame itemsDf and DataFrame transactionsDf, using columns itemId and transactionId as join keys, respectively?

A.

itemsDf.join(transactionsDf, "inner", itemsDf.itemId == transactionsDf.transactionId)

B.

itemsDf.join(transactionsDf, itemId == transactionId)

C.

itemsDf.join(transactionsDf, itemsDf.itemId == transactionsDf.transactionId, "inner")

D.

itemsDf.join(transactionsDf, "itemsDf.itemId == transactionsDf.transactionId", "inner")

E.

itemsDf.join(transactionsDf, col(itemsDf.itemId) == col(transactionsDf.transactionId))

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