Which of the following can be identified as the main policy objectives of a patent system?
1. To encourage an inventor to disclose an invention by granting exclusive rights over the invention to the inventor.
2. To benefit the public by limiting the scope and term of the exclusive rights granted to an inventor.
3. To benefit the public through encouraging innovation by publishing a full disclosure of the technical details of the invention.
4. To benefit the public through guaranteeing that the inventor can commercialize his/her invention.
Select the correct option.

A. 2, 3 and 4

B. 3, 4 only

C. 1, 2 and 4

D. All of the above

Answer: Option D