I think it's clarity, the story has to be clear so that the readers understand.
Answer:
B
Explanation:
the bird has run out of food and is asking to be fed
C - manners.
A boy like Roy, who has good manners, is welcome everywhere.
You can also replace the commas with dashes or brackets, they have the same effect but the different type of punctuation will make you a higher level.
A boy like Roy (who has good manners) is welcome everywhere.
A boy like Roy - who has good manners - is welcome everywhere.
Theseus' actions most advance the development of the plot.
