The answer is actually A just took the test!
The prologue of Romeo and Juliet serves to let he audience know the backstory of the play-set in Verona, two families are fighting, and that the deaths of Romeo and Juliet are the only thing that can stop the Montague/Capulet feud. Hope this helps you!
Zoologist study animals and other wildlife and how they interact with their ecosystem
A—
This sentence pretty much sums up what the writer of the passage wants to talk about. The other ones do not fit with the sentence “water is one factor that is necessary for growth” and do not fit the idea of the passage, which is what factors affect plant growth.