Read the assertion and reason carefully and choose the best answer:
1. Assertion (A): Sound cannot travel in vacuum.
Reason (R): Speed of the light is more than the speed of sound.
Reason (R): Speed of the light is more than the speed of sound.
2. Assertion (A): Sounds, which are pleasant to hear is called music.
Reason (R): Sounds, which are not pleasant to hear is called noise.
Reason (R): Sounds, which are not pleasant to hear is called noise.