Here are some ideas to write in your essay:
Social media is addicting because you can crave validation from others with likes and comments. It could also be addicting because you feel you are not good enough like these other men and women so you look at their body and compare it to yours. You should not be on social media that often if you do not have very high confidence and self love and can be brought down easily by words and pictures. Social media creates more problems sometimes and sometimes its a good platform but being on it to much can fill your brain with toxic thoughts that are no good for you.
A. A has both genders of the students and since we don’t know the amount of students of either gender, this serves as an indication that not all the students are of one gender or another.
Answer:
You can use this as a opening line, "Summer vacation ended, and hell began all over again."
It may be not well received though.