Answer:
A. is as simple as possible, including only necessary details
Explanation:
A good economic model -
It refers to the framework , which helps to demonstrate the complex economics process in a simplified manner is referred to as a good economic model .
The model need to be extremely simple , then only it is called as a good economic model .
All the facts and figures need to be very clear and descriptive .
Hence, from the given information of the question,
The correct option is a.
