1. Correct Answer: B: These are explosives in military weapons.
 
 2. Explanation of Options:
 
     ● Option A is incorrect.  
           ○ CL-20, HMX, and LLM-105 are not used as refrigerants.
           ○ Hydro-fluorocarbon refrigerants are typically used in air conditioning and refrigeration systems, not explosives.
           ○ These substances are not related to cooling technologies.
 
     ● Option B is correct.  
           ○ CL-20, HMX, and LLM-105 are known for their explosive properties.
           ○ They are high-energy materials used in military applications.
           ○ These substances are designed to produce a rapid release of energy, making them suitable for use in military weapons.
 
     ● Option C is incorrect.  
           ○ High-energy fuels for cruise missiles are different from explosives.
           ○ While both are used in military contexts, fuels are used for propulsion, not for explosive impact.
           ○ CL-20, HMX, and LLM-105 are not used as fuels for cruise missiles.
 
     ● Option D is incorrect.  
           ○ Rocket propulsion fuels are designed to provide thrust, not explosive force.
           ○ CL-20, HMX, and LLM-105 are not used as rocket fuels.
           ○ These substances are specifically formulated for explosive purposes, not for propulsion.