Answer: if you combine red and green paint you get brown
I agree with you, this quote is from the novel “Fahrenheit
451” by Ray Bradbury.
This particular quote is found on page 67, second paragraph of
the novel “Fahrenheit 451” written by an American writer Ray Bradbury in 1953.
This quote from Bradbury's “Fahrenheit 451” can be found also in “The Life of
Samuel Johnson, LL.D.” written by James Boswell and it serves as an allusion
because when Montag starts to read books he remembers his encounter with Faber,
his lifelong friend, which is the same for Boswell and his lifelong friend
Samuel Johnson.
The best answer is that concertos (which are large bodies of compositional work) were written for professional musicians who commissioned them. So the answer is A. Concerto's are large pieces of work often involving a solo instrument and full orchestra backup.