Answer:
The answer is D
Explanation:
I am not sure but the word "unsettle" means
causing anxiety or uneasiness; disturbing.
"the finale may come as an unsettling shock"
Track is important to Greg, so he runs several times a week
Suspense; <span>a state of feeling excited or anxious uncertainty about what might happen.
Look at google for more information</span>
Make a mathmatecal, chemical, or grammatical study of