When your dealing with questions like this usually there's more then one answer. In this case there is none. When they throw questions like the one above there testing you to see if you went through the passage and understood why people were feeling a certain way.
When you try to figure that out its usually best to re-read the passage and look for detail words. For example: anger, distrustful. In this case those words Leave you with C. I hope that helps you out!
