What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

1. (a) These are alternatives to hydrofluorocarbon refrigerants
2. (b) These are explosives in military weaponsCorrect answer
3. (c) These are high-energy fuels for cruise missiles
4. (d) These are fuels for rocket propulsion

Answer: (b)