How can you tell if an argument is sound

What words or phrases you to recognize the historical context of the line 7

Read this excerpt from leah missbach day's foreword to wheels of change. as wbr's resident photographer i am privileged to see firsthand the impact bicycles have on the lives of our recipients. why does the author include this excerpt?

Respect for the environment means a: loving trees and animals b: not drinking out of streams c: making as little impact as possible on wilderness areas d: only using resources that are high in supply