Answer:
E) Developing a model that shows variables and hypothesized relationship between them
Step-by-step explanation:
To conceptualize a model refers to representing or structuring the model.
For example, when a car manufacturer conceptualizes a new car model, it is representing how the car should be in real life, i.e. how it should look, how it should drive, etc.
When it comes to research processes, when you conceptualize a model, it means that you are actually selecting which variables you are going to use and determining what hypothesize you are going to test.
You take an idea and turn it into something concrete.