Which of the following is a detail from the section “A New Lab”?

A. He was allowed to set up a science lab in a baggage car until an accidental fire ended his experiments.

B. There, Edison worked tirelessly for many hours each day, and many of his employees worked just as hard.

C. After a few years, Thomas Edison decided that he wanted to become a full-time inventor.

D. Sitting in the dark for a few moments, people could think about the great changes Thomas Edison had made in their lives.