Question: Which of the following about MapReduce Programming Model is TRUE? A . MapReduce is often used in iterative data processing B . MapReduce is a

Which of the following about MapReduce Programming Model is TRUE?
A. MapReduce is often used in iterative data processing
B. MapReduce is a common programming model implemented in Apache Spark
C. The concept of MapReduce originated from object-oriented programming
D. Combiners in MapReduce may help reduce data transmission among multiple data nodes

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