I think it’s target audience
D. scatter means to displace on a low level so I assume you can destroy something by scattering it
The answer is tragically.
Because in a summary you should use as <em>few</em> details as possible, and saying tragically horrible is too many details for one sentence.
Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
C. your is the correct answer. Hope this helps