FREE IBM Certification Big Data Architect Question and Answers

Millions of people use a large telecommunications provider.
Most of their clients pay in advance.
They can very quickly move to other vendors because they are prepaid clients.
This business has experienced some significant customer loss due to competition over the last four to six months.
They want to create a system that can provide them access to the social network of their clients (e.g. who is the influencer and who is the follower).
Additionally, they want the system to be educated over time to anticipate potential complaints and the capability to analyze voice and data consumption patterns in real time.
Which of the following would you advise in this situation?