Sean Is Thinking About Creating an Automatic Cat Feeder Similar

Sean is thinking about creating an automatic cat feeder similar to one that he created for dogs.He talks to several cat owners to find out what they dislike about feeding their cats.He also takes a look at current cat feeders and asks the same cat owners what they like and don't like about the feeders.What is this action called?

A) asking questions and a pilot study
B) asking questions and hypothesis testing
C) asking questions and background research
D) asking questions and prototyping