Plz help, i literally don't know what to do

I think it is C. How thin or thick it is

Explanation: Line quality is also called line weight and simply put, refers to the thickness or thinness of the line. Lines may become wider or thicker in areas where the object itself is thicker. Or lines may become thicker to help indicate a light source. Lines in areas of shadow may be thicker. Range in line quality heightens descriptive potential: you can describe textures, movement, light, space, etc. Using many different kinds of lines in your drawing can also add visual interest. Even when the subject or content of a drawing is not readily recognizable, varying line quality can imply space, movement, light, and so on.

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i would love to you but i cant see a picture. i see that you already told someone before that i wont let post pictures on well i can kinda of you. posting pictures on here with your question is so much easier if your posting them on the app on your phone. if your trying to post a picture on a computer what you have to do is find out the name of the painting or equation, and once you've got that go to google type in the name and ta-da! and then last but not least you have to copy it. at the bottom of where you typing out the question you sould have this thing that looks like a paper clip and hit that and it should let you add it on here.

i hope this

have a great day  

i think it's but if you get it wrong its not my fault : )