What type of offenses can be handled without obtaining a warrant at the moment of observation?

The correct choice indicates that law enforcement officers can handle felonies and breaches of the peace without obtaining a warrant at the moment of observation. In legal practice, exigent circumstances often allow officers to take immediate action for serious crimes to prevent harm, destruction of evidence, or escape of a suspect. This includes situations where they witness a crime taking place, allowing them to act immediately.

Felonies typically represent serious offenses, and officers have broad authority to intervene when they observe felonious activity directly. Breach of the peace refers to behavior that disrupts public order, allowing officers to address these situations without a warrant due to the immediate need for action to maintain safety.

This approach ensures that law enforcement can respond effectively to urgent situations without the delay that would come from seeking a warrant, which can be critical in preventing further crime or harm. In contrast, while misdemeanors, traffic violations, and public intoxication also have their own criteria for warrantless action, they do not encompass the broader authority provided by the combination of felonies and breaches of the peace that necessitate immediate law enforcement response to protect the public.