Which of the Following Statements About MapReduce Is False

Multiple Choice

Which of the following statements about MapReduce is false

A) In the MapReduce step, Hadoop divides the data into batches that it distributes across the nodes in the cluster.
B) Hadoop also distributes the MapReduce task's code to the nodes in the cluster and executes the code on one node at a time sequentially. Each node processes only the batch of data stored on that node.
C) The reduction step combines the results from all the nodes to produce the final result.
D) To coordinate all this, Hadoop uses YARN ("yet another resource negotiator") to manage all the resources in the cluster and schedule tasks for execution.