I think that this means that not everyone has the same mentality, so therefore, the same event can mean different things to different people. For example, every person experiences life differently whether that be different cultures, environments, or religion. This all affects how a person develops moral, ethics and their thinking process. Also, people learn new things every day which can also influence their , already existing, mentality meaning "[their] response can change over time.
its not 200 words but i hope this helps :)
The answer is B.
Hope this helped.
The Literary device is PATHOS. It is a method of persuasion and convincing the audience with an argument that appeal to the emotions and feelings. In this particular statement, the author attempts to persuade the audience to get involve into the recycling program actively by appealing to their emotions and feelings towards the environment.