Explanation:

Diabetes is a Non-Communicable Disease (NCD) that occurs either when the pancreas does not produce enough insulin (a hormone that regulates blood sugar, or glucose), or when the body cannot effectively use the insulin it produces.

• Diabetes affects the five major organs namely, Kidney, Heart, Blood vessels, Nervous System, and Eyes (retina).

Types of Diabetes

Type I diabetes: It is also known as juvenile diabetes (as it mostly affects children of age 14-16 years), this type occurs when the body fails to produce sufficient insulin. 

• People with type I diabetes are insulin-dependent, which means they must take artificial insulin daily to stay alive.

Type 2 diabetes: It affects the way the body uses insulin. While the body still makes insulin, unlike in type I, the cells in the body do not respond to it as effectively as they once did. 

• The population with 45 and above age groups is the most affected with it.
• Gestational diabetes: This type occurs in women during pregnancy when the body sometimes becomes less sensitive to insulin.
• Gestational diabetes does not occur in all women and usually resolves after giving birth.

Hence only statements 2&3 are correct.