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.
Middle I believe it the correct choice
I assume that this is an opinion question, so I will state my opinion on the matter. I think that they should since more people are having children at a younger age and they are choosing to have huge families. It would take a while to get everything fixed, and until they could find a way to grow food, they would have to import food. So it would be best if they found out a way to grow food up there before they send people up. If they didn't they would have to waste a lot of rocket fuel and space fuel, taking food to and fro.
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B is the answer because it exemplifies how the word is linked with the source of where the word came from and what it means in Greek.