The fact that Hine was paid to to take a photograph by an organization that opposed child labor might cause someone to question the reliability of Hine's photograph because

c holding free elections

i really really really really really really dont know

d is the answer. leo should include the source.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: