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Which of the following statements about Spark's DataFrames is incorrect?

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Which of the following statements about Spark's DataFrames is incorrect?

A.

Spark's DataFrames are immutable.

B.

Spark's DataFrames are equal to Python's DataFrames.

C.

Data in DataFrames is organized into named columns.

D.

RDDs are at the core of DataFrames.

E.

The data in DataFrames may be split into multiple chunks.

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