I believe the correct answer from the choices listed above is option B. The correct sentence would be "If she doesn't graduate in December, she willgraduate in June." This is the only sentence where the comma is in the right place while the others are wrongly placed.
The questioned asked the following statement is an inference. There are more people living in Russia than there are in Switzerland. FALSE
Answer:
A. A comparison of three universities
Explanation:
D. She feels bad about missing the meeting.
He accepted himself of how he looked.