To tell you the truth, I have had this kind of problem. Those who are writing questions, like you, will write+as-sign. I've had it before. That multiple-choice question obviously has no D option. I thought the last one was D, so I chose all C as D. . .
In fact, it can be avoided now. Look at each question carefully and do each question carefully in your homework at ordinary times. Do more and practice more (I believe you must have your own reference materials! ) While it is still the first day, everything has just begun. Lay a good foundation. I believe that with your wisdom, you will be able to correct this problem and you will learn better and better in the future!
I wish you excellent results in the midterm exam.