Identifying the Accused in Section 82 CrPC

Ab yeh question padhe hue the, main to lag gaya tha ki kya karna hai. "An FIR was registered against four persons for an offence punishable under Section 498A IPC. The investigating officer arrested two of the accused. However, in the course of investigation, the IO came to know that the two arrested persons were actually sons of one of the accused. Which one of the following is the correct conclusion? (a) The sons cannot be arrested as they are not the accused, (b) The sons are also the accused and can be arrested, (c) The sons are not accused but their arrest cannot be ruled out, (d) The sons are not accused and their arrest is prohibited."

Ab main socha ki CrPC mein kya hai, aur yeh question kyun padta hai.