Elderly people are more likely to develop type 2 diabetes due to the decline in production.

Correct Answer: D

Rationale: The correct answer is D: insulin. Elderly individuals are more likely to develop type 2 diabetes due to a decrease in insulin production by the pancreas and decreased sensitivity to insulin in tissues. Insulin plays a crucial role in regulating blood sugar levels by facilitating the uptake of glucose into cells for energy production. A decline in insulin production or sensitivity can lead to elevated blood sugar levels, contributing to the development of type 2 diabetes. Estrogen (choice A), thyroid hormone (choice B), and follicle-stimulating hormone (choice C) do not directly impact insulin production or sensitivity in the context of type 2 diabetes development in elderly individuals.

Correct Answer: C

Rationale: The correct answer is C: Fats. Fats take the longest to digest due to their complex structure, requiring more time and effort for the stomach to break them down. This slow digestion process leads to fats staying in the stomach longer compared to carbohydrates and proteins. Carbohydrates are typically broken down relatively quickly, while proteins take longer than carbohydrates but are still processed more efficiently than fats. Therefore, fats remain in the stomach longest among the given options.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.