Answer:
No one else is awake except for me
Explanation:
This sentence is the only one that presents correct grammar usage.
The last choice, "Teens who sleep less than 5 hours a night suffer from more immune related illnesses according to a study released in 2015 by the American Journal of Medicine." It gives a source to where the information had been gathered.
Indicates a state of reality.
Indicative verbs state what is going on at that moment, or what could very possibly happen.
e.g "I run through the forest".
The last one ouch a connation is a feeling that adds to the meaning
