Difference between the answer is wrong with music

Music is a sound that produces a pleasing sensation. It is produced by nature, musical instruments, human voice, etc.

Noise is an unwanted and unpleasant sound produced by horns of vehicles, by machines, etc. If a musical sound is made too loud, it becomes a noise.

Music is a sound that produces a pleasing sensation. It is produced by nature, musical instruments, human voice, etc.

Noise is an unwanted and unpleasant sound produced by horns of vehicles, by machines, etc. If a musical sound is made too loud, it becomes a noise.

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.

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