To persecute someone means to:

To persecute someone means to treat them cruelly and unfairly because of their ideas, beliefs, or identity. This definition emphasizes the aspect of ongoing mistreatment or hostility towards individuals or groups based on characteristics such as religion, political beliefs, race, or sexual orientation.

Persecution often involves systemic and sustained actions that aim to oppress, punish, or violate the rights of those targeted, creating an environment of fear and suffering. This aligns closely with many historical and contemporary scenarios where certain groups face discrimination and violence for their beliefs or identities.

The other options describe actions that are the opposite of persecution. Supporting someone's rights publicly, helping someone in times of need, and protecting someone from harm all represent acts of kindness, support, and advocacy, rather than mistreatment or cruelty. These actions are aimed at promoting well-being and safeguarding individuals, in stark contrast to the concept of persecution.