Option "C" is the correct answer to the following question.
Explanation:
Given words are "sweetness" , "fullness"
Let's think about what "-ness" in sweetness means in the words given. Then add the sense of fullness to the "-ness." We will be able to find ways of "fullness" from this.
Op art designs are usually geometric patterns used to create an illusion. Im not really sure what you mean by "how say two artists that drow these things"