Final answer:
To copyright her script, Samantha should register it with the U.S. Copyright Office.
Step-by-step explanation:
The correct answer is A) Register the script with the U.S. Copyright Office.
To copyright her script, Samantha should register it with the U.S. Copyright Office. This process involves submitting an application and a copy of the script to the Copyright Office. By registering her script, Samantha will have official documentation of her copyright and will be able to assert her rights if anyone infringes on her work.
Registering the script provides stronger protection and evidence of ownership compared to other methods such as sending a copy to herself via certified mail or sharing it online with a timestamp.