Big Data Often Involves a Form of Distributed Storage and Processing

Multiple Choice

Big Data often involves a form of distributed storage and processing using Hadoop and MapReduce. One reason for this is

A) centralized storage creates too many vulnerabilities.
B) the "Big" in Big Data necessitates over 10,000 processing nodes.
C) the processing power needed for the centralized model would overload a single computer.
D) Big Data systems have to match the geographical spread of social media.