​ What Was the Goal of Lewis Hine's Photograph

​ What was the goal of Lewis Hine's photograph Leo, 48 Inches High, 8 Years Old, Picks Up Bobbins at 15¢ a Day ?

A) To elect more Progressive Party candidates
B) To create images that accompany newspaper articles about factories and their workforce
C) To change public policy so that children no longer would work in factories
D) Unknown but useful to historians studying past labor conditions