What are the characteristics of playback settings? Note: There are 2 correct answers to this question.

What are the characteristics of playback settings? Note: There are 2 correct answers to this question.
A . They can be modified by end users.
B. They are saved in the trainer resource.
C. They can be set on project level by using the Project Override settings.
D. When they are appended to the URL, they override default settings.

Answer: A,C