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Why is pandas API syntax compatible within a Pandas UDF function when applied to a Spark DataFrame? Choose only ONE best answer.
A
The Pandas UDF automatically translates the function into Spark DataFrame syntax
B
The pandas API syntax cannot be implemented within a Pandas UDF function on a Spark DataFrame
C
The Pandas UDF invokes Pandas Function APIs internally
D
The Pandas UDF utilizes pandas API on Spark within its function
E
The Pandas UDF leverages Apache Arrow to convert data between Spark and pandas formats
