Which of the Following Is Correct with Regard to Copyrights

Multiple Choice

Which of the following is correct with regard to copyrights?

A) Copyrights apply only to a basic idea,not to the tangible expressions of the idea.
B) Copyrights are more valuable than either patents or trademarks.
C) Copyrights extend to creators for their entire lives.
D) Copyrights cannot be extended to the estates of the person who originally received the copyright.
E) All of these statements are correct.