Final answer:
Nitroglycerine explodes due to rapid decomposition, which results in a high-pressure shock wave from the sudden production of gases.
Step-by-step explanation:
The explosive behavior of nitroglycerine is not due to its low density, chemical stability, or high molecular weight. Rather, the explosive force of nitroglycerine comes from C) As a result of rapid decomposition. When nitroglycerine explodes, it decomposes rapidly into gases such as carbon dioxide, water vapor, nitrogen, and oxygen. This rapid decomposition produces a large volume of gas in a very short amount of time, leading to a high-pressure shock wave characteristic of an explosion.