Final answer:
The one word used incorrectly is 'prosecuted'. Paul Robeson was persecuted for speaking out against racism.
Step-by-step explanation:
The subject of this question is History at the High School level.
The one word that is used incorrectly in the given passage is prosecuted. The correct word should be persecuted. Paul Robeson was not prosecuted but rather persecuted for speaking out against racism.
Prosecuted refers to legal action taken against someone in a court, whereas persecuted means being subjected to harassment, discrimination, or mistreatment due to one's beliefs or actions.
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