Read the following context and choose the best option to answer the question.
Context: 9/11 was right in front of us . It was surrealistic , a bad movie , a movie that even Jerry Bruckheimer would n't , could n't imagine making . We stood there for an incalculable amount of time . We stood in the company of strangers , but no one was a stranger that day .
Question: Why did the onlookers seem stunned ?
Options: 
A. None of the above choices .
B. They had only a few moments ' warning before the buildings collapsed .
C. They were unable to process so many losses .
D. They were surprised that so much noise came from the explosions .


C