The correct answer is D.
In this excerpt from "Goodbye to All That," Didion seeks to explain that the time she spent in New York went by so quickly she did not even notice. She compares her experience with that of a movie, in which several years may pass in just a minute.
She expresses that, looking back, it all feels surreal, like something that she saw on a movie.
The correct answer would be A. The first step in getting the gist would be to identify the keywords. Getting gist is the same as knowing the main idea of a certain passage. The very first to identify this should be to find keywords that you think is important in the text and speaks of the message of the passage.
A. Finishes weaving a tapestry