Answer:
b. trivial
Step-by-step explanation:
According to the textbook "Billy Collins, The Offhand Poetry of Billy Collins," Billy Collins' poetry is all of the following except:
b. trivial
Collins' poetry is often playful, measured, and formal in its structure, but it is not considered trivial. His poetry is known for its accessibility and wit, and he often explores deeper themes and ideas through seemingly mundane or everyday subjects.