Where a compact body of persons armed with clubs headed by a man carrying a gun endeavored to take forcible possession of land one of the opponent was shot dead by their head :

• A. All of them are guilty of murder.
• B. Head person is only guilty or murder.
• C. Head is guilty of murder while others of being a member of unlawful assembly.
• D. All of them are guilty of being a member of unlawful assembly.