Which of the Following Examples Explains the Improved Planning Benefit

Which of the following examples explains the improved planning benefit of using a CRM system?

A) improved record keeping and efficient methods of capturing customer complaints that assist in identifying problems faster
B) learning how each customer defines product and service quality so that customized product,pricing,and services can be designed or developed collaboratively.
C) providing mechanisms for managing and scheduling sales follow-ups to assess satisfaction,repurchase probabilities,time frames,and frequencies
D) tracking customer behavior over time that helps to identify future opportunities for product and service offerings
E) integrated information that removes information handoffs,speeding both sales and support processes