The answer is obsessive-compulsive disorder. Compulsive and usually unwanted thoughts and actions (rituals) are the common features of the disorder. Although OCD is usually associated with repeating the actions over and over, such as obsessive hand-washing or having to flick a light switch a certain number of times, many people who suffer from OCD struggle with frequent unwanted thoughts and images.
Answer:
underestimating the inherent human capacity for destructive and evil behaviors.
Explanation:
Instinct -- it's something each and every individual is born with. It's not something we learn or something we see or something experience teaches us. For example, why someone likes strawberries, someone does not? Or why we pull away when a bad scent occurs? Why we blink? And many more. It's the same with violence -- someone is born with it in themselves, and someone, simply, is not.
D. increase in weight because the fat you have will be turning into muscle