what is the most appropriate purpose for a biography written about a former us president? to persuade to…

Brief Explanations:

A biography aims to present factual - based life details of an individual. For a former US president, it's mainly to give readers information about their life, career, and impact. It's not primarily to persuade (as it's not an argumentative piece), nor mainly to entertain (though it may have entertaining elements).

Answer:

to inform