I don't know if this is what your looking for, but here you go!
How to be happy and positive is to look at the positive side of EVERYTHING!!! Let's say you just broke up with someone. Well, now you know that they obviously weren't the one for you. If they were cheating or if they wanted to break up. There are different scenarios where it is hard to deal with it. And there is no positive side to it, but just try to look at the positive side. Let's say someone you loved just died. Sure it is DEFINITELY going to be depressing, but it was there time to move on. They fulfilled their purpose, and it was time for them to go where they belonged. Let's say your house burnt down. It gives you another chance to go live somewhere else, and start anew. Say you got cancer. Yea you might die, but at least it gives you another positive outlook on life. To appreciate everything that has happened. Say you are getting bullied. It gives you a chance to help the entire world by sharing your bullying story. There are so many positives to everything. Just try to look that way. :)
-Twix
Being sedentary means you don't move around (stay in one place).
People who are sedentary could play video games at their computer all of the time, which means they stay up late.
Staying up late leads to sleep deprivation.
Thus, video gamers could have sleep deprivation.
C is going to be the best answer to this question.
