I would say C, because while cigarettes can cause weight loss, it's not a reason that nicotine would make it hard for someone to quit. Headaches are a symptom of nicotine withdrawal and loss of sleep as well.
Your heart or lungs may not be strong enough for surgery, your body might not be able to tolerate anesthesia, and the surgery may do harm to your body instead of it doing something good.
To check for a pulse in the person
Diet and exercise change. Limit processed and sugary foods so your pancreas isn’t overworked.
