According to the provisions of Article 50 of the original Criminal Law, C should be chosen. However, Article 8 of the Criminal Law Amendment has been amended and now provides as follows:

Article 50 If the death penalty is suspended, and there is no intentional crime during the suspended period, it shall be commuted to life imprisonment after the expiration of two years; If there is indeed a significant meritorious service, after the expiration of two years, it will be reduced to 25 years in prison; If the crime is intentional and verified, the Supreme People's Court will approve the execution of the death penalty.

So there is something wrong with this topic itself, and there is no correct answer.