Answer: E. Marketing research
Explanation:
Marketing research is defined as a process of collecting data which relates to customers and analysising data gotten to aid making goods and services. Marketing research helps the marketer or the producer to understand the customers, what decision is needed to be taken to get better or to learn from faults or complains that arose. It helps marketer and producers to plan better on how to reach more audience with their market, what they need to add or use to catch the potential customers out there.
