the great inca road What is the author's most likely reason for including the photograph in the "Expert Bridge Builders " section ? To demonstrate that the landscape frequently posed obstacles to road builders To emphasize that many Inca - built structures suffered from exposure to the elements To highlight the unique design and appearance of a particular type of Inca bridge To illustrate how the features of a river determine which type of bridge is appropriate

Based on the given information, it is most likely that the author included the photograph in the "Expert Bridge Builders" section to illustrate how the features of a river determine which type of bridge is appropriate.