Which of the Following Statements A), B) or C) Is

Which of the following statements a) , b) or c) is false?

A) When you process truly big data, performance is crucial.
B) Spark is geared to disk-based batch processing-reading the data from disk, processing the data and writing the results back to disk.
C) Many big-data applications demand better performance than is possible with disk-intensive operations. In particular, fast streaming applications that require either real-time or near-real-time processing won't work in a disk-based architecture.
D) All of the above statements are true.