D. All of the above
To access Dynamic Study Modules (DSM), you need all of the following:
A. Enrollment in a course that uses Mastering with DSM
→ DSM is only available through specific Mastering courses that have it enabled.
B. Previously signing in from a desktop, if using DSM on the mobile app
→ For first-time access on mobile, you must initially sign in from a desktop to activate the connection.
C. A current Mastering username and password
→ You must have valid login credentials for the Mastering platform.
Since all three are required, the correct choice is D. All of the above.