What is the best way to add multiple instructors at the same time and given them access to My Classes?

Your customer has a large number of internal instructors that need to be added to SuccessFactors Learning. These instructors need access to the My Classes tab.

What is the best way to add multiple instructors at the same time and given them access to My Classes? Note: There are 2 correct answers to this question.
A . Add instructors to the Related Instructor field of the user record
B. Create the instructors using Learning -> Instructors -> Add New
C. Use the Import Data tool
D. Add related users and instructors roles to each row of the Entity Template Instructor file

Answer: C,D