Firs of all, it is important to clarify that a resolution is the part in a story where the main problem/struggle is resolved.
So, in Part A, the correct option is the third sentence, because is the part in the story where the problem has been worked out.
Firstly<em>,</em> Wanda helps Samara come up with a plan to present to the town zoning board.
Secondly, Samara gives a presentation to the town zoning board about creating a new park.
Thirdly, Residents show their support for Samara’s idea by volunteering to help.
Finally, the resolution, where Samara and members of her community come together and create a new park.
Part B:
The detail that supports the answer in part A is in the second sentence. Because in this part we can see that she has already given the presentation and residents have already helped her.
<em>"It was all a little intimidating, but Wanda, the reference librarian, helped Samara break it all down into manageable steps." "As soon as her idea was approved, Samara called a meeting for anyone. "When the day of the zoning board meeting arrived, Samara felt nervous, but Wanda and the other librarians were there for moral support." "Samara was happy to have been part of not only creating a beautiful space, but a common area where residents could come together."</em>