What aspect of romantic writing did realist writers disapprove of?

A) realistic settings

B) boring plots

C) the use of everyday events

D) the fanciful treatment of material

Realist is a thought that judge the real things with perceptions and realism is opposite to idealism.

therefore,

realist writers disapprove of the f anciful treatment of material.

hence the right option is D) the fanciful treatment of material