When ConAgra Initiated a Study with Some of Its Retailers

When ConAgra initiated a study with some of its retailers, such as Safeway, Kroger, and Walmart, to study how and why people buy its foods, ConAgra was using which of the following steps to improve its marketing intelligence system?

A) A company can motivate distributors, retailers, and other intermediaries to pass along important intelligence.
B) A company can train and motivate the sales force to spot and report new developments.
C) A company can take advantage of government data sources.
D) A company can set up an advisory panel.
E) A company can network externally.