19. One of the fundamental policy objectives of the patent system under the R.O.C. Patent Act is to balance private incentives and public interest. This objective is primarily achieved by: (A) Granting exclusive rights for a limited period in exchange for public disclosure of the invention. (B) Allowing patent owners to maintain technical information as trade secrets indefinitely. (C) Eliminating disclosure requirements once a patent is granted. (D) Extending patent protection whenever commercial success is demonstrated.