Life existence,referring to life species. Hope I helped!!
Answer:
Our life experiences can be seen as a "feedback loop" which can either negatively, or, positively shape our morals, ethics, and values as an individual. If we want different experiences, though, we have to change the why? and the what, and then, monitor the loop.
The answer is: [D]: "imagery" .
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By calling them lemmings he wanted to call the attention for people that dont have original ideas to share.