Which section of Penal Code addresses unlawful fighting?

The correct answer is Penal Code 415(1), which specifically addresses unlawful fighting. This section makes it a misdemeanor to engage in fighting in public places. The focus of this code section is on the disruption to the peace and order of the public caused by such altercations. It underscores the legal stance that engaging in a physical fight can have negative implications not only for the individuals involved but also for the community at large.

The choice of Penal Code 645 does not pertain to fighting but rather addresses different legal concepts. Penal Code 647(i) relates to disorderly conduct and the inability to maintain self-control in a way that disrupts the peace, which is not specifically tied to fighting. Finally, Penal Code 420 deals with the offense of willfully interfering with the use of utility or public property, which does not connect to fighting either. Thus, Penal Code 415(1) is the most directly relevant section regarding unlawful fighting in public.