The writer wishes to include another example of the dangers of dynamite during Nobel’s time. Which of the following true sentences, if inserted here, would best fulfill that goal?

F. Even today, safety precautions are required when working with dynamite.
G. Dynamite has many uses, from excavating for natural resources to imploding decayed buildings.
H. Many other less serious explosions also occurred in Nobel’s laboratory, and grave danger was ever present.
J. As a volatile liquid substance, nitroglycerin is highly explosive.