Which of the following choices is not considered an environmental stressor? a. flashing lights b. heavy traffic c. cancer d. loud noises

I'm no doctor, but I believe it's C, cancer.

The question asks what is not considered an environmental stressor (is that a word??) and the only thing that's not "environmental" is cancer. If you have it, it's within your body, not apart of your environment. Your environment is the setting around you, so flashing lights, heavy traffic, and loud noises would definitely be environmental!

I hope this helped you! :)

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