Final answer:
The correct answer is option a) True.
Step-by-step explanation:
The statement, "The Seafarer and the other poems in the Exeter Book provide the chief source of Anglo-Saxon poetry," is considered True.
The Exeter Book is one of the most important surviving collections of Anglo-Saxon poetry, dating back to the 10th century and containing an extensive range of verses, including elegies, religious texts, and a series of riddles.
The Seafarer is one of the best-known poems in this anthology, offering insights into the life and emotions of an Old English mariner. Books such as the Exeter Book are critical in understanding the literature and culture of Anglo-Saxon England.