Marketing Researchers Have Observed That Today We Live in an Era

Marketing researchers have observed that today we live in an era of data deluge. The challenge facing managers is not data collection or even storage but how to

A) leverage external data sources.
B) effectively develop internal sources without excessive data generation.
C) avoid the use of data warehouses.
D) efficiently transform the huge amount of data into useful information.
E) match buying queries to relevant outputs.