How did use of the vernacular affect the spread of humanism in europe? the vernacular artists create and distribute works that patrons liked. the vernacular writers and philosophers reach wider audiences. the vernacular scholars collect and study classical literature. the vernacular politicians and businessmen maintain power.

It might be said that the use of the vernacular (option B) " helped writers and philosophers reach wider audiences". This term is associated with the native language or (native) dialect a population have. It is also known as lingua franca or vernacular language. As using a well-known language it is easier for people to understand and so the text might get to more people, audiences.