Why Would a Company Purchase Data to Add to Its

Why would a company purchase data to add to its CRM system?

A) The company may not have convinced all of its salespeople to switch to CRM systems,so they might need to supplement the hand-written notes those salespeople have.
B) The company can use this purchased data as a basis for writing modeling software for that particular industry.
C) The company could try to align their sales models with the statistics in the purchased database.
D) The company might need demographic or other information to help them predict customer buying statistics.
E) The company will want to edit the purchased data to reflect the company's sales history for the previous four quarters.