What Did Lutz and Collins Conclude After Their Investigation of National

What did Lutz and Collins conclude after their investigation of National Geographic photos?

A) They depict the harsh realities of life in many different places.
B) They avoid images that might disrupt readers' views of the world.
C) They open up a broad cultural perspective that most readers would otherwise never see.
D) They help readers remember that peoples of the world are more alike than different.