Which of the following accurately describes the duties of a public prosecutor?

The role of a public prosecutor is to represent the state in criminal prosecutions, which involves presenting the case against individuals or entities accused of violating criminal laws. This includes gathering evidence, preparing legal documents, and presenting arguments in court to seek a conviction. Public prosecutors work on behalf of the government to uphold the law and ensure justice is served in cases involving public offenses.

In contrast, calculating state taxes pertains to responsibilities generally managed by tax authorities and has no relation to criminal prosecutions. Defending clients accused of crimes is the role of defense attorneys, who represent individuals facing charges, while providing legal counsel in civil matters falls within the purview of civil attorneys rather than criminal prosecutors. Thus, option B accurately captures the essence of a public prosecutor's duties.