Answer option C is your most likely answer. Fad diets are as stated merely fads that have strung up to provide easy weight loss solutions as quickly as possible. Unfortunately many of these strategies are not safe or have been backed up by Healthcare experts. Additionally these diets are not used consistently, usually bringing weight down to an accepted level in the opinion of the person using the diet, before the discontinue, and because the diets are usually skimping on important nutrition the body will actually try and bring more weight in order to prep for possible future malnourishment.
Hope this helps, and if you got any other questions on the topic feel free to ask.
When a child is choking and can't breathe or speak, you MUST give abdominal thrusts (the Heimlich maneuver). The Heimlich maneuver pushes air from the child's lungs which helps to remove the blocking object. You should give abdominal thrusts until the object is forced out or the victim becomes unresponsive.