This can be looked at in two ways. It can be looked at as an answer, "Where is the tree." "Over the Cracks in the sidewalks", or it can be looked at as a sentence standing alone which is what I believe is happening.
It is A.) Sentance fragment
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.
Motivational assertion is the correct answer. It is an intrinsic motivation to have autonomy and self determination.
B. when you add that to the sentence it blends together better then the other options did.
Hello~
Prompt: Explain why peoples writing has gotten worse over the years.
Hook: Over the last few years, people's writing had gotten very bad. From spelling to punctuation.
Good luck!
Ary~