As she opened the box, the rusty hinge made a screech much like someone scraping fingernails across a blackboard. The news Julianne received in a postcard that day was much more unnerving.

Which definition of the word unnerving BEST fits the context of this sentence from the article?
Responses
A causing joy and celebration in a person's heartcausing joy and celebration in a person's heart
B making a person to be thoughtful and meditativemaking a person to be thoughtful and meditative
C making a person upset or to feel empty of couragemaking a person upset or to feel empty of courage
D causing a person to feel encouragedcausing a person to feel encouraged
E causing great anxiety and moments of rage

C - making a person upset or to feel empty of courage.

E causing great anxiety and moments of rage