A backboard could mean:
a board placed at or forming the back of something, such as a collage or piece of electronic equipment.<span>
an upright board behind the basket, off which the ball may rebound.
a board used to support or straighten a person's back, especially after an accident.
It depends on the context of the word.
</span>
Answer:
In Thomas' poem, the lines "Do not go gentle into that good night" and "Rage, rage against the dying of the light" are refrains. In villanelles, the refrain comprises the last lines of the poem.Thomas uses a villanelle because villanelles often dealt with pastoral, natural, or simple themes.
Explanation:
B.<span>lines of force is the answer.
</span>