Five cardinal signs of an infection should be swelling, high temperature,pain, redness and stuff coming out your body such as pus. :).
The answer is C, body language. Body language is very important in communication. If you are in an interview and you're fidgeting...looking around the room...pacing....slouching....chances are you aren't going to get the job.
The true statement would be B because getting rid of lunch or breakfast is a no and eating to heavy causes obesity hope it helps :)