Why might a command-and-control policy that forbids music to be played above a certain decibel level lead to an inefficient outcome?a. Yakov playing his music loudiy does not do any harm if Charies is not home. b. An efficient outoome can only be achieved if everyone can do what they love c. Itisurfair because such policy would restret Yako's activey but not Charles's.

a. Yakov playing his music loudiy does not do any harm if Charies is not home.

Explanation:

A command-and-control policy that forbids music to be played at high decibels in all periods of time might lead to an inefficient outcome because as the answer explains, if Yakov plays loud music when Charles is not home, Yakov is not harming anyone, and in fact, he could be benefiting someone: himself, either by relaxing if he listens to the music, or by becoming a better musician if he plays the music.

the correct answer would be b, when, queen, calder hall and london.

explanation:

we always capitalize words when a paragraph or sentence is starting, when an important name is used, when a place is being written, or simply when a noun is used, etc. so in this sentence, sentence is starting from 'when', so it will be written in capital letters. secondly, queen is considered to be an important person, so it will also be written in capital letter. next, the name of the town is mentioned, i-e calder hall, which will also be written in capital letters. in the last,   city name is being used, 'london', which will also be written in capital letters. so option b is the most appropriate one.