Type 1 diabetes mellitus __________.

• A. is a common disorder in overweight individuals older than 40
• B. is treated by improving insulin receptor efficiency rather than by giving insulin
• C. is the most common form of the disease; more than 90% of all diabetics have type 1 diabetes
• D. can be controlled for many years with exercise and a proper diet
• E. is an autoimmune disease in which the immune system attacks beta cells in the pancreas

Answer: (E)

Verified step by step guidance

1. Understand that Type 1 diabetes mellitus is a chronic condition where the pancreas produces little or no insulin due to the immune system attacking the insulin-producing beta cells.
2. Recognize that this condition is different from Type 2 diabetes, which is often associated with insulin resistance and is more common in overweight individuals over 40.
3. Note that Type 1 diabetes is not the most common form of diabetes; Type 2 diabetes is more prevalent, accounting for over 90% of diabetes cases.
4. Realize that Type 1 diabetes cannot be controlled solely with exercise and diet, as it requires insulin therapy to manage blood glucose levels.
5. Identify that the correct description of Type 1 diabetes is that it is an autoimmune disease where the immune system attacks the beta cells in the pancreas, leading to insulin deficiency.