Type 1 diabetes exhibits:

Choice A reason: Fever is not typically the first clinical manifestation in tumors of the breast, testicle, or lymph nodes. Fever is generally more associated with infections or systemic illnesses. In the context of cancer, fever might occur in later stages due to the body's response to the tumor or secondary infections.

Choice B reason: Swelling, while it can be a symptom, is not necessarily the first clinical manifestation. Swelling can occur due to a variety of reasons, including infection, trauma, or other non-cancerous conditions. In tumors, swelling may occur as the mass grows and affects surrounding tissues, but it is not the most immediate or obvious sign.

Choice C reason: Pain is also not usually the first symptom to appear in tumors of the breast, testicle, or lymph nodes. Pain often occurs later as the tumor grows and starts pressing on nerves or other structures. Early stages of tumors are often painless, which is why they can go unnoticed for some time.

Choice D reason: The first and most common clinical manifestation of tumors in these areas is a palpable mass. This means a lump or mass that can be felt through the skin. This is particularly true for breast, testicular, and lymph node cancers. Early detection often involves physical examinations to feel for any unusual lumps.

Choice A reason: Risk factors for type 2 diabetes include hypertension, family history, and obesity. These factors increase the likelihood of developing type 2 diabetes. Hypertension, or high blood pressure, is often seen in individuals with type 2 diabetes due to the correlation between these conditions. A family history of diabetes indicates a genetic predisposition to the disease. Obesity, particularly central obesity (excess fat around the abdomen), is a significant risk factor as it contributes to insulin resistance, a key component in the pathophysiology of type 2 diabetes.

Choice B reason: The onset of type 2 diabetes is typically gradual, which means that it develops slowly over time. Many individuals may have prediabetes for years before their condition progresses to type 2 diabetes. This gradual onset can make it challenging to diagnose early, as symptoms may be mild or absent initially. Early detection through routine screening and awareness of risk factors is essential in managing and preventing the progression of the disease.

Choice C reason: Type 2 diabetes accounts for approximately 90-95% of all diabetes cases. It is the most common form of diabetes and is primarily characterized by insulin resistance and relative insulin deficiency. Unlike type 1 diabetes, where the body's immune system attacks and destroys insulin-producing cells, type 2 diabetes typically develops due to a combination of genetic and lifestyle factors, such as poor diet and lack of physical activity.

Choice D reason: Significant weight loss is not a typical sign of type 2 diabetes. Instead, it is more commonly associated with type 1 diabetes, where the body cannot produce insulin, leading to the breakdown of fat and muscle for energy. In type 2 diabetes, weight loss may occur if blood sugar levels are very high, but it is not a common initial symptom. More commonly, individuals with type 2 diabetes may experience symptoms such as increased thirst, frequent urination, and fatigue.