Answer: D) social sci-fi
Kurt Vonnegut's "Report on the Barnhouse Effect" focuses on Professor Barnhouse's ability to control things with his own mind and the US government's exploitation of his abilities which forces him into hiding. The story is a form of a social science fiction since it deals with speculation about human behaviors and the society in general.
Its focus on Barnhouse's powers and the government's reaction towards it provides the social aspect that makes it belong to the category.
