A.
a vivid memory of an early-morning walk in the country.
Answer:
there isnt enough energy for it to keep swinging.
d
Explanation:
B. the last couple of sentences in this passage tell the readers that "<span>We must urge our representatives to pass stronger antipollution laws with stiff punishment if they are not obeyed. We must act now before it is too late." this is obvious persuasion, so B is the best answer.</span>