Answer:
Immuizations can prevent certain diseases by helping your body fight the disease. It makes your body think it is being attack by a certain disease. Then your body creates a defense against it to fight the disease off.
Explanation:
B isn’t true regarding smooth muscles
Push-ups can reduce symptoms of arthritis.
They can never reduce bone density, they can only reduce your weight. They cannot increase amount of cholesterol, food does that. Although they can increase back pain, the more pushups you do, the less pain you will feel. So D is the correct answer for sure.
