Speech balloons, also known as speech bubbles, dialogue balloons or word balloons, are a graphic convention used most commonly in comic books, comics and cartoons to allow words to be understood as representing the speech or thoughts of a given character in the story or events of the graphic novel or Comic.
According to the information presented before I would conclude that the main purpose of a speech bubble in a graphic novel is:
D) It illustrates internal thoughts.
Page 6, is where Lennie talks about tending the rabbits in the book of mice and men.
Because, Buck wanted to Lead the sled himself. He thought that since he beat and killed Spitz, then he had earned that right only.
It would make more sense if you did “later, she added a suggestion box.”
Can you restate this question