Which of the following novels written in the 1960s did not deal with the subject of war? catch-22 the green berets stranger in a strange land slaughterhouse five

Stranger in a Strange Land

Stranger in a Strange Land is a 1961 science fiction novel by Robert A. Heinlein. The book tells the story of Valentine Michael Smith, a human who was born in Mars and raised by Martians, but who comes to the Earth in his early adulthood. The book, therefore, does not deal with the subject of war.

b) race riots in several cities