Dolly Winthrop was very supporting of Silas. She was the sort of character who delineated a sort and patient lady who helped Silas incredibly.
Their first encounter was when Dolly presented to Silas a plate of cake with the initials I.H.S. on them. Dolly additionally gave her advice on how to care for a child when Silas began thinking about Eppie.
A dystopia is a "futuristic, imagined universe in which oppressive societal control and the illusion of a perfect society are maintained through corporate, technological, moral, or totalitarian control". It is the opposity of an utopia.
A world that has plunged into chaos because of the government removing the right to electricity from rebel communities is an example of a scenario for a dystopian story, since it shows how the oppresion of the government leads to a disastrous change on society's functioning. And it also shows how this scenario is maintained by the government's totalitarian control.
The rest of the answers, in which people disappear, aliens replace teenagers and a genius boy is discovered living in a library cellar, would make for good sci-fi scenarios rahter than dystopian societies.
D). "Then the sky darkens, and a loud splattering of rain begins to fall."
The setting describing the darkening of the sky and the loud splattering sound of the beginning of the rain functions to signal the progressing action of the scene. It functions to indicate to the readers that things will not remain as merry as a picnic sight has to be. The sound of rain and dark sky breaks the enjoyment, calmness, and relaxing environment of the day and symbolizes that something fierce is approaching. This prepares the readers for an onset storm and hence, option D is the correct answer.