If you determine the noun (subject of the sentence, person, place, or thing) you can find the adjective (thing that is describing the noun) for example
1. The noun the the “person” and the adjective describing the person is “shy”
The correct answer is a sequence of events. As the story progresses, each event brings the story closer to resolution.
It means that scientists will no longer have to wait to develop diseases
The Wizard of Oz has been around for 121 years. it’s in pop culture, TV, movies, theater, books, cartoons, toys, etc. while it’s possible someone might not be familiar with the story, it’s highly unlikely.