A, B, and C are senior Accountancy students in St. Johnson University. In 2017, they were able to come up with a very impressive compilation of their handwritten notes on various Accounting subjects such as Financial Accounting, Management Accounting, Advanced Accounting and Auditing Theory.They even polished it until reduced into one (1) Compendium that effectively helped them pass and top the CPA Board Exam on the same year.The University is too proud to produce triple topnotchers on that year that made everyone curious about their secret.Unfortunately, A and B died in 2018 of plane crash. In 2019, C began telling everyone about the Compendium which they made in the past and in December of the same year, Gifted Mind Review Center (GMRC) became interested to explore it.In need of money, C brought the Compendium to GMRC for purposes of evaluation if it has potential usage value.Unfortunately, while the Compendium was in GMRC's possession, C also died of a heart attack in January 2020.Admittedly, the Compendium was never before published and was never registered to the IPO. A year after C's death, GMRC began widely using the Compendium for its reviewees' advantage and was set to publish it under its own name. QUESTION: Is there infringement of copyright in this case?If your answer is NO, explain why.If your answer is YES, then who has the right to complain for damages and infringement of copyright against GMRC?