Computer Game Companies Constantly Monitor Computer Game-Related Blogs Keeping Track

Computer game companies constantly monitor computer game-related blogs keeping track of the latest hot products,because they know that their customers crave the "latest and greatest" games.They use this information to create new products that primarily provide the benefit of:

A) keeping up in a market where sales come mostly from new products.
B) satisfying the changing needs of former customers.
C) avoiding market penetration from products that have been on the market for a long time.
D) creating diversification and reducing risk.
E) all of these.