C is the correct answer
The sentence is trying to say that
- sound can travle long i distances
- Sound's energy is prevented from getting dissipated by the boundaries created....
All other options, apart from C, change the meaning or have grammatical errors
The sentence is trying to say that
- sound can travle long i distances
- Sound's energy is prevented from getting dissipated by the boundaries created....
All other options, apart from C, change the meaning or have grammatical errors
