Which of these locations is it illegal to carry a concealed firearm in Louisiana?

Carrying a concealed firearm in government buildings is illegal in Louisiana because it increases the risk of accidental shootings and violence. While carrying in restaurants serving alcohol (choice A) may also pose a threat, it is not explicitly illegal in the state of Louisiana. Private vehicles (choice C) are also not listed as a prohibited location, as long as the individual has a valid concealed carry permit. Open fields (choice D) are generally considered public spaces and do not have specific restrictions on carrying concealed firearms, unless they are located within a designated hunting area.