Which of the following statements is false? A. Insulin is a hormone secreted by the pancreas. B. Insulin must be present for cells to utilize glucose. C. Leptin levels correlate with levels of the...

Which of the following statements is false?

A. Insulin is a hormone secreted by the pancreas.

B. Insulin must be present for cells to utilize glucose.

C. Leptin levels correlate with levels of the body’s fat stores.

D. Diabetics have too much insulin.