The cause of item A is shown above. A verb such as "formed" should be added before "a picture" to make "big freehand" become the object instead of the subject.
The structure of item C is confusing and there are two predicates of "deprivation" and "strong" (strong is an adjective, and in Chinese, adjectives can be used as predicates. For example, "yes" in "The flowers are red" does not mean a judgment. verb, but to express emphasis), "still strong" should be removed.
Item D (seems to be) is not properly matched. "Intriguing" cannot be the subject of "stay". Words such as "feeling" should be added.
These are my own understandings and are for reference only. There are some things that I am not sure about, such as the cause of item D, and the word "feeling" that I feel does not fit the context. I can continue to discuss these with the teacher.
As an aside, it’s good to study hard and ask questions, but don’t get too entangled in more subjective things in your senior year of high school, especially when the questions are ambiguous. It’s better to save the time you spend asking questions online and study. Learning and progress~