Chad has been researching the lives of squirrels to write a paper about them. He has organized his ideas in the cluster diagram below. Use the diagram to answer the questions.


1
What is the most likely reason that Chad used a different color for four of the boxes in the diagram?
A.
They are all minor details that will not affect his paper.
B.
He did not want to make all the boxes the same color.
C.
Each blue box relates to a different animal he was researching.
D.
These are the main topics his paper will discuss.