Read the following context and choose the best option to answer the question.
Context: I just experienced my first earthquake . I ' m at work and it scared the crap out of me . The whole building shook and then we started to sway . Then we all stood in doorways until it was over .
Question: Why may the narrator be so shaken and concerned ?
Options: 
A. The narrator just went through a robbery .
B. None of the above choices .
C. The narrator just went through a national disaster .
D. The narrator just went through an attack .


C