As Bede, the writer, was a devout Christian, he used many references to Christianity in his work. Jesus Christ was considered a shepherd to his flock as he led people out of sinful lives into sin-free lives. Similarly, Caedmon is said to have led people away from their vices and toward the path to heaven through his song. A cowherd was also a person at the bottom of the social ladder. This fact might be meant to imply that through divine grace, even a man from a humble background may change many lives.
The only line among these which is written in iambic pentameter is A) "I lift my lamp beside the golden door."
This line has 10 syllables, which means it has 5 meters (to count the number of meters, you first count the number of syllables and then divide that number by 2). Since it has 5 meters, and the Greek word for 5 is penta, it must be an iambic pentameter.
