1. Draw ERD diagrams Crows foot model

D. (25 pts) The New School Inc. (NSI) has 12 instructors and can handle up to 30 trainees per class. NSI offers five Advanced Technology courses, each of which may generate several classes. If a class has fewer than ten trainees, it will be canceled. Therefore, it is possible for a course not to generate any classes. Each class is taught by one instructor. Each instructor may teach up to two classes or may be assigned to do research only. Each trainee may take up to two classes per year. Draw the corresponding ERD. Ensure you include all the assumptions you make to complete your ERD