Final answer:
The typical style of language for a pastoral poem is colloquial or common language.
Step-by-step explanation:
The style of language that is typical for a pastoral poem is colloquial or common language. Pastoral poems are known for their simple and natural expression, as they often depict rural or countryside settings and the lives of shepherds. The use of courtly language (option A) would be more common in poetry of the courtly love tradition, while slang and insulting phrases (option C) would not be appropriate for the peaceful and idyllic nature of pastoral poems.
Learn more about Pastoral poetry