What steps are needed to enroll a smart-card driver after installation?

What steps are needed to enroll a smart-card driver after installation?

A.
Edit precheck.txt and deploy it to the Client.

B.
Deploy drivers and run pscontrol.exe on Clients to install the drivers.

C.
Add the drivers in Windows with the existing Deployment tool.

D.
Copy drivers to the smart-card profile, and create a rule in the SmartCenter Policy.

Explanation: