A universal truth would be b. responds differently to different language styles.
Some people don't read because of entertainment but rather because they have to, while novels might be preferable to some readers more than short stories. Stories about current issues and ideas might be appalling to some. The second sentence is the one that is most correct.
It is false that reading a play rather than seeing it takes away all of its entertainment value. Both reading and seeing a play can be very entertaining, it has nothing to do with the medium.
Your correct, It is B
Good Luck!
Writers use it to tell what the personality of a character is.