Don't talk to him about politics because it's like a ..... rag to a bull.

Don't talk to him about politics because it's like a ..... rag to a bull. (*) blue (*) white (*) red (*) black


This is a companion discussion topic for the original entry at https://english.best/questions/3404,dont-talk-to-him-about-politics-because-its-like-a-___-rag-to-a-bull/