In a case the Supreme Court observed thus-"We are unable to find any magic or charm in the ritual of a charge. It is the substance of these provisions (relating to charge) that count and not their outform. To hold otherwise is only to provide avenues or escape for the guilty and afford no protection to the innocent." The court made these observations in relation to

A. Alteration of charge

B. Joinder of charges

C. Persons who may be charged jointly

D. Error, omission or irregularity in charge

Answer: Option A