Stevenson, a U$.$S$.$ citizen, wrote a book called The Ten Commandments of Leadership. He gave away copies of the book to the people who attended his workshops on leadership. The copyright protection for this book

Multiple Choice

is nonexistent unless Stevenson registers it with the Copyright Office.

is in effect from the time the book was created and fixed in a copy.

will be valid for only $20$ years since the publication of the book.

will be valid till Stevenson dies.