Someone wrote the following code to draw a tree. When they drew the picture in the center, what number did they put in for the levels argument? In other words, what goes in the blank in the code on the right?

There should be an image here Quiz Question 1 Code tree toplevel script

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What would happen if you changed the argument size to be -100?

There should be an image here     tree toplevel script

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The program will never stop running and a lot of different branches will be drawn.
It will never stop running and only a single branch will be drawn.
Nothing - it will work just like if the same positive value was provided.
The image will be flipped upside down but will otherwise look the same.
Nothing will be drawn.

What would happen if you changed the argument levels to be -4?

There should be an image here     tree toplevel script

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The program will never stop running and a lot of different branches will be drawn.
It will never stop running and there will be no forks in the version of the tree that is drawn.
Nothing - it will work just like if the same positive value was provided.
The image will be flipped upside down but will otherwise look the same.
Nothing will be drawn.