Where is it prohibited to carry a firearm in Utah?

Carrying a firearm is generally prohibited in federal buildings due to federal laws regulating firearms possession on federal properties. Federal buildings include places like federal courthouses, post offices, and government offices. While there may be exceptions for law enforcement officers and individuals with special permissions, the general public is not allowed to carry firearms in these areas to ensure safety and security. Therefore, option A is the correct answer.

State parks and bars/restaurants have their own specific regulations regarding firearms, but these establishments may not necessarily have a blanket prohibition on carrying firearms like federal buildings do. It is important for gun owners to familiarize themselves with both state and local laws to understand where it is lawful to carry firearms in Utah.