Which best describes the author's purpose in the excerpt you read from Free the Children

To inform readers about the inconsistencies in Iqbal's story and to persuade them that what is more important is Iqbal's impact on the fight to end child labor

The answer to this question is "to inform". This is the best word that would describe the author's purpose in the except that we read from the story entitled "Free the children'. When we say except it is referring to the short part extracted from the story. Thus, by giving the except, the readers know the location and atmosphere of the plot.