Answer:
C. "Getting lost" refers to the sensation of losing one's self in a group and even after, shortly affecting memory and self-image.
Explanation:
The idea of "getting lost" in a group can most definitely mean that a person has lost his personal values and beliefs by joining a group and adapting to the values of the group.
When a person loses himself in a group, he loses his self-image and he feels disillusioned.
In my opinion, they do not only reveal what will happen, but also manipulate events. When Macbeth approached the witches, they could have concealed the truth from him and just let the events unfold, but they didn't do it. They told him about the prophecy, thus initiating the events that soon followed. If they hadn't told him the truth, Macbeth might have never killed Banquo, Duncan, and the rest in order to become king. So yes, they manipulated events and caused a great tragedy.
Mr. Carris is afraid and it is shown through direct characterization.