The answer is
D.<span>The storm—it was the worst in years—caused several power outages.</span>
He says this to reassure ralph that things will be ok. Simon is one of the most sensitive characters in the book and becomes aware of Ralph's worry. This is also an example of the books theme of herd mentality and social reliance since simon is aware of the effect his words and examples have on the others.
The poem is stating, to stop and see what you have, take stock, before you neglect or lose “it”.
“A bird in the hand is worth more than two in a bush”!
The answer is a. selecting the right medium.