I think that the answer is D
The importance of using a variety of sentence structures is to change up your writing. To make the reader engaged in what you have to say. If your sentence structure is weak and does not vary the reader might get bored. It also better shows your topic.
hope this helps! have a good day!
False. positive thinking can lead you to your goal. wishful thinking will keep you in the same place just wishing for it instead of getting it
