Which of the following about big data analytics in business is true? a. Managers who believe in what data analytics indicates or predicts sometimes clash with those managers who put their faith in historical information and manager experience. b. Experts say that if all the data available today were printed in books, the books would cover the entire surface of the United States with just over 100 layers. c. Not only does the analysis of big data sets reveal correlations, it also identifies underlying causes and purposes. d. In order for the analysis of big data sets to be meaningful, inaccurate or incomplete data must be thrown out so that only consistent data is accurately analyzed