Answer:
Asynchronous sound is sound that is indigenous to the action but has not been synchronized with the screen image.
Explanation:
The prefix "a" tells us that it is the opposite of synchronous.
Answer: A picture is often assessed in relation to visible reality. ... ... A photograph shows this relationship to reality perfectly: it shows the reality set before the lens just as it is, without human interference.
The answer is b) musicians because they are the one that preform in public!