I believe the answer is A) what angers the speaker in this poem is the prospect of being chained and fenced.
In a house alone, an old person sits silently as snow comes down. He/She can hear horse trot by on the cobblestone road outside his house, never stopping to say anything. The sound echoes through the person's ears, all through the night, as the lonely fire burns bright.
That's what I imagine.
Hope this helps! Have a great day!
Because he thought it would be a good idea
Answer based on your own feelings. No one can answer for you.