Answer:
a. They are temporary employees.
d. They are part-time employees.
Step-by-step explanation:
Contingent Employees are employees that are hired by a company on a temporary basis. They are usually hired to perform a job at a time and hence do not cost as much as permanent staff.
The text from the video shows that Maine Media Workshops hires professionals in fields related to film-making to come and instruct at various workshops on a temporary basis which is inferebly a week or less. The temporary basis of this employment means that they are Contingent Employees who work part time.