Type 1 diabetes exhibits:

Choice A reason: Polydipsia refers to excessive thirst, polyuria refers to frequent urination, polyphagia refers to increased hunger, weight loss often occurs despite an increased appetite, and fatigue is a common symptom due to the body's inability to properly use glucose for energy. These symptoms are classic early signs of type 1 diabetes and occur because the body cannot produce enough insulin to regulate blood sugar levels.

Choice B reason: While weakness, vomiting, hypotension, and mental confusion can be symptoms associated with diabetic ketoacidosis (a serious complication of diabetes), they are not typically the earliest signs of type 1 diabetes. These symptoms may develop later if diabetes is not managed properly.

Choice C reason: Recurrent infections, visual changes, and paresthesia can occur in individuals with diabetes, but they are more common in long-standing diabetes and are not the earliest signs. These symptoms result from chronic high blood sugar levels affecting various body systems.

Choice D reason: Vomiting, abdominal pain, sweet, fruity breath, dehydration, and Kussmaul breathing are symptoms of diabetic ketoacidosis (DKA), a severe and life-threatening complication of diabetes. While these symptoms can occur in individuals with type 1 diabetes, they are not the initial signs but rather indicators of an advanced and poorly controlled condition.

Choice A reason: Exercise has been shown to decrease the cardiovascular effects of excessive glucose. Regular physical activity helps improve cardiovascular health by reducing blood pressure, improving cholesterol levels, and enhancing blood flow. In individuals with type 2 diabetes, exercise can help lower blood glucose levels and reduce the risk of cardiovascular complications, which are common in diabetes due to chronic high blood glucose levels.

Choice B reason: Skeletal muscles can indeed use glucose without a proportionate insulin amount during exercise. This is because exercise increases insulin sensitivity and allows muscles to take up glucose more efficiently. As a result, physical activity can help lower blood glucose levels and improve overall glucose control in individuals with type 2 diabetes.

Choice C reason: Exercise decreases stress, which is beneficial for individuals with type 2 diabetes. Physical activity helps release endorphins, which are natural stress relievers. Lower stress levels can help improve blood glucose control, as stress hormones like cortisol can raise blood glucose levels. Therefore, reducing stress through exercise can contribute to better diabetes management.

Choice D reason: All of the above reasons are correct. Exercise is encouraged in type 2 diabetes because it provides multiple benefits, including improving cardiovascular health, enhancing glucose uptake by skeletal muscles, and reducing stress levels. These combined effects help improve overall blood glucose control and reduce the risk of complications associated with type 2 diabetes.